More LLM param test coverage (#535)

* More LLM tests

* Fixing tests

tests/unit/test_text_completion/test_azure_openai_processor.py

@@ -402,6 +402,156 @@ class TestAzureOpenAIProcessorSimple(IsolatedAsyncioTestCase):
         assert call_args[1]['max_tokens'] == 1024
         assert call_args[1]['top_p'] == 1
 
+    @patch('trustgraph.model.text_completion.azure_openai.llm.AzureOpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_azure_openai_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_azure_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = 'Response with custom temperature'
+        mock_response.usage.prompt_tokens = 20
+        mock_response.usage.completion_tokens = 12
+
+        mock_azure_client.chat.completions.create.return_value = mock_response
+        mock_azure_openai_class.return_value = mock_azure_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-4',
+            'endpoint': 'https://test.openai.azure.com/',
+            'token': 'test-token',
+            'api_version': '2024-12-01-preview',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Azure OpenAI API was called with overridden temperature
+        call_args = mock_azure_client.chat.completions.create.call_args
+        assert call_args[1]['temperature'] == 0.8  # Should use runtime override
+        assert call_args[1]['model'] == 'gpt-4'
+
+    @patch('trustgraph.model.text_completion.azure_openai.llm.AzureOpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_azure_openai_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_azure_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = 'Response with custom model'
+        mock_response.usage.prompt_tokens = 18
+        mock_response.usage.completion_tokens = 14
+
+        mock_azure_client.chat.completions.create.return_value = mock_response
+        mock_azure_openai_class.return_value = mock_azure_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-4',    # Default model
+            'endpoint': 'https://test.openai.azure.com/',
+            'token': 'test-token',
+            'api_version': '2024-12-01-preview',
+            'temperature': 0.1,   # Default temperature
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gpt-4o",    # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Azure OpenAI API was called with overridden model
+        call_args = mock_azure_client.chat.completions.create.call_args
+        assert call_args[1]['model'] == 'gpt-4o'  # Should use runtime override
+        assert call_args[1]['temperature'] == 0.1  # Should use processor default
+
+    @patch('trustgraph.model.text_completion.azure_openai.llm.AzureOpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_azure_openai_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_azure_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = 'Response with both overrides'
+        mock_response.usage.prompt_tokens = 22
+        mock_response.usage.completion_tokens = 16
+
+        mock_azure_client.chat.completions.create.return_value = mock_response
+        mock_azure_openai_class.return_value = mock_azure_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-4',    # Default model
+            'endpoint': 'https://test.openai.azure.com/',
+            'token': 'test-token',
+            'api_version': '2024-12-01-preview',
+            'temperature': 0.0,   # Default temperature
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gpt-4o-mini",  # Override model
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Azure OpenAI API was called with both overrides
+        call_args = mock_azure_client.chat.completions.create.call_args
+        assert call_args[1]['model'] == 'gpt-4o-mini'  # Should use runtime override
+        assert call_args[1]['temperature'] == 0.9  # Should use runtime override
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_azure_processor.py

@@ -459,5 +459,150 @@ class TestAzureProcessorSimple(IsolatedAsyncioTestCase):
         )
 
 
+    @patch('trustgraph.model.text_completion.azure.llm.requests')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_model_override(self, mock_llm_init, mock_async_init, mock_requests):
+        """Test generate_content with model parameter override"""
+        # Arrange
+        mock_response = MagicMock()
+        mock_response.status_code = 200
+        mock_response.json.return_value = {
+            'choices': [{
+                'message': {
+                    'content': 'Response with model override'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 15,
+                'completion_tokens': 10
+            }
+        }
+        mock_requests.post.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'endpoint': 'https://test.inference.ai.azure.com/v1/chat/completions',
+            'token': 'test-token',
+            'temperature': 0.0,
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model
+        result = await processor.generate_content("System", "Prompt", model="custom-azure-model")
+
+        # Assert
+        assert result.model == "custom-azure-model"  # Should use overridden model
+        assert result.text == "Response with model override"
+
+    @patch('trustgraph.model.text_completion.azure.llm.requests')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_temperature_override(self, mock_llm_init, mock_async_init, mock_requests):
+        """Test generate_content with temperature parameter override"""
+        # Arrange
+        mock_response = MagicMock()
+        mock_response.status_code = 200
+        mock_response.json.return_value = {
+            'choices': [{
+                'message': {
+                    'content': 'Response with temperature override'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 15,
+                'completion_tokens': 10
+            }
+        }
+        mock_requests.post.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'endpoint': 'https://test.inference.ai.azure.com/v1/chat/completions',
+            'token': 'test-token',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature
+        result = await processor.generate_content("System", "Prompt", temperature=0.8)
+
+        # Assert
+        assert result.text == "Response with temperature override"
+
+        # Verify the request was made with the overridden temperature
+        mock_requests.post.assert_called_once()
+        call_args = mock_requests.post.call_args
+
+        import json
+        request_body = json.loads(call_args[1]['data'])
+        assert request_body['temperature'] == 0.8
+
+    @patch('trustgraph.model.text_completion.azure.llm.requests')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_both_parameters_override(self, mock_llm_init, mock_async_init, mock_requests):
+        """Test generate_content with both model and temperature overrides"""
+        # Arrange
+        mock_response = MagicMock()
+        mock_response.status_code = 200
+        mock_response.json.return_value = {
+            'choices': [{
+                'message': {
+                    'content': 'Response with both parameters override'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 18,
+                'completion_tokens': 12
+            }
+        }
+        mock_requests.post.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'endpoint': 'https://test.inference.ai.azure.com/v1/chat/completions',
+            'token': 'test-token',
+            'temperature': 0.0,
+            'max_output': 4192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters
+        result = await processor.generate_content("System", "Prompt", model="override-model", temperature=0.9)
+
+        # Assert
+        assert result.model == "override-model"
+        assert result.text == "Response with both parameters override"
+
+        # Verify the request was made with overridden temperature
+        mock_requests.post.assert_called_once()
+        call_args = mock_requests.post.call_args
+
+        import json
+        request_body = json.loads(call_args[1]['data'])
+        assert request_body['temperature'] == 0.9
+
+
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_bedrock_processor.py

@@ -0,0 +1,280 @@
+"""
+Unit tests for trustgraph.model.text_completion.bedrock
+Following the same successful pattern as other processor tests
+"""
+
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+from unittest import IsolatedAsyncioTestCase
+import json
+
+# Import the service under test
+from trustgraph.model.text_completion.bedrock.llm import Processor, Mistral, Anthropic
+from trustgraph.base import LlmResult
+
+
+class TestBedrockProcessorSimple(IsolatedAsyncioTestCase):
+    """Test Bedrock processor functionality"""
+
+    @patch('trustgraph.model.text_completion.bedrock.llm.boto3.Session')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_processor_initialization_basic(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test basic processor initialization"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_bedrock = MagicMock()
+        mock_session.client.return_value = mock_bedrock
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'mistral.mistral-large-2407-v1:0',
+            'temperature': 0.1,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        # Act
+        processor = Processor(**config)
+
+        # Assert
+        assert processor.default_model == 'mistral.mistral-large-2407-v1:0'
+        assert processor.temperature == 0.1
+        assert hasattr(processor, 'bedrock')
+        mock_session_class.assert_called_once()
+
+    @patch('trustgraph.model.text_completion.bedrock.llm.boto3.Session')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_success_mistral(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test successful content generation with Mistral model"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_bedrock = MagicMock()
+        mock_session.client.return_value = mock_bedrock
+        mock_session_class.return_value = mock_session
+
+        mock_response = {
+            'body': MagicMock(),
+            'ResponseMetadata': {
+                'HTTPHeaders': {
+                    'x-amzn-bedrock-input-token-count': '15',
+                    'x-amzn-bedrock-output-token-count': '8'
+                }
+            }
+        }
+        mock_response['body'].read.return_value = json.dumps({
+            'outputs': [{'text': 'Generated response from Bedrock'}]
+        })
+        mock_bedrock.invoke_model.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'mistral.mistral-large-2407-v1:0',
+            'temperature': 0.0,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act
+        result = await processor.generate_content("System prompt", "User prompt")
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Generated response from Bedrock"
+        assert result.in_token == 15
+        assert result.out_token == 8
+        assert result.model == 'mistral.mistral-large-2407-v1:0'
+        mock_bedrock.invoke_model.assert_called_once()
+
+    @patch('trustgraph.model.text_completion.bedrock.llm.boto3.Session')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_bedrock = MagicMock()
+        mock_session.client.return_value = mock_bedrock
+        mock_session_class.return_value = mock_session
+
+        mock_response = {
+            'body': MagicMock(),
+            'ResponseMetadata': {
+                'HTTPHeaders': {
+                    'x-amzn-bedrock-input-token-count': '20',
+                    'x-amzn-bedrock-output-token-count': '12'
+                }
+            }
+        }
+        mock_response['body'].read.return_value = json.dumps({
+            'outputs': [{'text': 'Response with custom temperature'}]
+        })
+        mock_bedrock.invoke_model.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'mistral.mistral-large-2407-v1:0',
+            'temperature': 0.0,  # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify the model variant was created with overridden temperature
+        # The cache key should include the temperature
+        cache_key = f"mistral.mistral-large-2407-v1:0:0.8"
+        assert cache_key in processor.model_variants
+        variant = processor.model_variants[cache_key]
+        assert variant.temperature == 0.8
+
+    @patch('trustgraph.model.text_completion.bedrock.llm.boto3.Session')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_bedrock = MagicMock()
+        mock_session.client.return_value = mock_bedrock
+        mock_session_class.return_value = mock_session
+
+        mock_response = {
+            'body': MagicMock(),
+            'ResponseMetadata': {
+                'HTTPHeaders': {
+                    'x-amzn-bedrock-input-token-count': '18',
+                    'x-amzn-bedrock-output-token-count': '14'
+                }
+            }
+        }
+        mock_response['body'].read.return_value = json.dumps({
+            'content': [{'text': 'Response with custom model'}]
+        })
+        mock_bedrock.invoke_model.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'mistral.mistral-large-2407-v1:0',  # Default model
+            'temperature': 0.1,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="anthropic.claude-3-sonnet-20240229-v1:0",  # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Bedrock API was called with overridden model
+        mock_bedrock.invoke_model.assert_called_once()
+        call_args = mock_bedrock.invoke_model.call_args
+        assert call_args[1]['modelId'] == "anthropic.claude-3-sonnet-20240229-v1:0"
+
+        # Verify the correct model variant (Anthropic) was used
+        cache_key = f"anthropic.claude-3-sonnet-20240229-v1:0:0.1"
+        assert cache_key in processor.model_variants
+        variant = processor.model_variants[cache_key]
+        assert isinstance(variant, Anthropic)
+
+    @patch('trustgraph.model.text_completion.bedrock.llm.boto3.Session')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_bedrock = MagicMock()
+        mock_session.client.return_value = mock_bedrock
+        mock_session_class.return_value = mock_session
+
+        mock_response = {
+            'body': MagicMock(),
+            'ResponseMetadata': {
+                'HTTPHeaders': {
+                    'x-amzn-bedrock-input-token-count': '22',
+                    'x-amzn-bedrock-output-token-count': '16'
+                }
+            }
+        }
+        mock_response['body'].read.return_value = json.dumps({
+            'generation': 'Response with both overrides'
+        })
+        mock_bedrock.invoke_model.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'mistral.mistral-large-2407-v1:0',  # Default model
+            'temperature': 0.0,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="meta.llama3-70b-instruct-v1:0",  # Override model (Meta/Llama)
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Bedrock API was called with both overrides
+        mock_bedrock.invoke_model.assert_called_once()
+        call_args = mock_bedrock.invoke_model.call_args
+        assert call_args[1]['modelId'] == "meta.llama3-70b-instruct-v1:0"
+
+        # Verify the correct model variant (Meta) was used with correct temperature
+        cache_key = f"meta.llama3-70b-instruct-v1:0:0.9"
+        assert cache_key in processor.model_variants
+        variant = processor.model_variants[cache_key]
+        assert variant.temperature == 0.9
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])

tests/unit/test_text_completion/test_claude_processor.py

@@ -435,6 +435,156 @@ class TestClaudeProcessorSimple(IsolatedAsyncioTestCase):
         assert processor.claude == mock_claude_client
         assert processor.default_model == 'claude-3-opus-20240229'
 
+    @patch('trustgraph.model.text_completion.claude.llm.anthropic.Anthropic')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_anthropic_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_claude_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.content = [MagicMock()]
+        mock_response.content[0].text = "Response with custom temperature"
+        mock_response.usage.input_tokens = 20
+        mock_response.usage.output_tokens = 12
+
+        mock_claude_client.messages.create.return_value = mock_response
+        mock_anthropic_class.return_value = mock_claude_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'claude-3-5-sonnet-20240620',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.9  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Claude API was called with overridden temperature
+        mock_claude_client.messages.create.assert_called_once()
+        call_kwargs = mock_claude_client.messages.create.call_args.kwargs
+
+        assert call_kwargs['temperature'] == 0.9                        # Should use runtime override
+        assert call_kwargs['model'] == 'claude-3-5-sonnet-20240620'     # Should use processor default
+
+    @patch('trustgraph.model.text_completion.claude.llm.anthropic.Anthropic')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_anthropic_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_claude_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.content = [MagicMock()]
+        mock_response.content[0].text = "Response with custom model"
+        mock_response.usage.input_tokens = 18
+        mock_response.usage.output_tokens = 14
+
+        mock_claude_client.messages.create.return_value = mock_response
+        mock_anthropic_class.return_value = mock_claude_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'claude-3-5-sonnet-20240620',  # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.2,                     # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="claude-3-haiku-20240307",  # Override model
+            temperature=None                   # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Claude API was called with overridden model
+        mock_claude_client.messages.create.assert_called_once()
+        call_kwargs = mock_claude_client.messages.create.call_args.kwargs
+
+        assert call_kwargs['model'] == 'claude-3-haiku-20240307'  # Should use runtime override
+        assert call_kwargs['temperature'] == 0.2                 # Should use processor default
+
+    @patch('trustgraph.model.text_completion.claude.llm.anthropic.Anthropic')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_anthropic_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_claude_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.content = [MagicMock()]
+        mock_response.content[0].text = "Response with both overrides"
+        mock_response.usage.input_tokens = 22
+        mock_response.usage.output_tokens = 16
+
+        mock_claude_client.messages.create.return_value = mock_response
+        mock_anthropic_class.return_value = mock_claude_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'claude-3-5-sonnet-20240620',  # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.0,                     # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="claude-3-opus-20240229",  # Override model
+            temperature=0.8                  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Claude API was called with both overrides
+        mock_claude_client.messages.create.assert_called_once()
+        call_kwargs = mock_claude_client.messages.create.call_args.kwargs
+
+        assert call_kwargs['model'] == 'claude-3-opus-20240229'  # Should use runtime override
+        assert call_kwargs['temperature'] == 0.8                # Should use runtime override
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_cohere_processor.py

@@ -442,6 +442,162 @@ class TestCohereProcessorSimple(IsolatedAsyncioTestCase):
         assert call_args[1]['prompt_truncation'] == 'auto'
         assert call_args[1]['connectors'] == []
 
+    @patch('trustgraph.model.text_completion.cohere.llm.cohere.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_cohere_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_cohere_client = MagicMock()
+        mock_output = MagicMock()
+        mock_output.text = 'Response with custom temperature'
+        mock_output.meta.billed_units.input_tokens = 20
+        mock_output.meta.billed_units.output_tokens = 12
+
+        mock_cohere_client.chat.return_value = mock_output
+        mock_cohere_class.return_value = mock_cohere_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'c4ai-aya-23-8b',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,  # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Cohere API was called with overridden temperature
+        mock_cohere_client.chat.assert_called_once_with(
+            model='c4ai-aya-23-8b',
+            message='User prompt',
+            preamble='System prompt',
+            temperature=0.8,  # Should use runtime override
+            chat_history=[],
+            prompt_truncation='auto',
+            connectors=[]
+        )
+
+    @patch('trustgraph.model.text_completion.cohere.llm.cohere.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_cohere_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_cohere_client = MagicMock()
+        mock_output = MagicMock()
+        mock_output.text = 'Response with custom model'
+        mock_output.meta.billed_units.input_tokens = 18
+        mock_output.meta.billed_units.output_tokens = 14
+
+        mock_cohere_client.chat.return_value = mock_output
+        mock_cohere_class.return_value = mock_cohere_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'c4ai-aya-23-8b',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.1,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="command-r-plus",    # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Cohere API was called with overridden model
+        mock_cohere_client.chat.assert_called_once_with(
+            model='command-r-plus',  # Should use runtime override
+            message='User prompt',
+            preamble='System prompt',
+            temperature=0.1,  # Should use processor default
+            chat_history=[],
+            prompt_truncation='auto',
+            connectors=[]
+        )
+
+    @patch('trustgraph.model.text_completion.cohere.llm.cohere.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_cohere_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_cohere_client = MagicMock()
+        mock_output = MagicMock()
+        mock_output.text = 'Response with both overrides'
+        mock_output.meta.billed_units.input_tokens = 22
+        mock_output.meta.billed_units.output_tokens = 16
+
+        mock_cohere_client.chat.return_value = mock_output
+        mock_cohere_class.return_value = mock_cohere_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'c4ai-aya-23-8b',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.0,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="command-r",  # Override model
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Cohere API was called with both overrides
+        mock_cohere_client.chat.assert_called_once_with(
+            model='command-r',  # Should use runtime override
+            message='User prompt',
+            preamble='System prompt',
+            temperature=0.9,  # Should use runtime override
+            chat_history=[],
+            prompt_truncation='auto',
+            connectors=[]
+        )
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_googleaistudio_processor.py

@@ -477,6 +477,156 @@ class TestGoogleAIStudioProcessorSimple(IsolatedAsyncioTestCase):
         # The system instruction should be in the config object
         assert call_args[1]['contents'] == "Explain quantum computing"
 
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_genai_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_genai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = 'Response with custom temperature'
+        mock_response.usage_metadata.prompt_token_count = 20
+        mock_response.usage_metadata.candidates_token_count = 12
+
+        mock_genai_client.models.generate_content.return_value = mock_response
+        mock_genai_class.return_value = mock_genai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify the generation config was created with overridden temperature
+        cache_key = f"gemini-2.0-flash-001:0.8"
+        assert cache_key in processor.generation_configs
+        config_obj = processor.generation_configs[cache_key]
+        assert config_obj.temperature == 0.8
+
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_genai_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_genai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = 'Response with custom model'
+        mock_response.usage_metadata.prompt_token_count = 18
+        mock_response.usage_metadata.candidates_token_count = 14
+
+        mock_genai_client.models.generate_content.return_value = mock_response
+        mock_genai_class.return_value = mock_genai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.1,   # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gemini-1.5-pro",    # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Google AI Studio API was called with overridden model
+        call_args = mock_genai_client.models.generate_content.call_args
+        assert call_args[1]['model'] == 'gemini-1.5-pro'  # Should use runtime override
+
+        # Verify the generation config was created for the correct model
+        cache_key = f"gemini-1.5-pro:0.1"
+        assert cache_key in processor.generation_configs
+
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_genai_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_genai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = 'Response with both overrides'
+        mock_response.usage_metadata.prompt_token_count = 22
+        mock_response.usage_metadata.candidates_token_count = 16
+
+        mock_genai_client.models.generate_content.return_value = mock_response
+        mock_genai_class.return_value = mock_genai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.0,   # Default temperature
+            'max_output': 8192,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gemini-1.5-flash",  # Override model
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Google AI Studio API was called with both overrides
+        call_args = mock_genai_client.models.generate_content.call_args
+        assert call_args[1]['model'] == 'gemini-1.5-flash'  # Should use runtime override
+
+        # Verify the generation config was created with both overrides
+        cache_key = f"gemini-1.5-flash:0.9"
+        assert cache_key in processor.generation_configs
+        config_obj = processor.generation_configs[cache_key]
+        assert config_obj.temperature == 0.9
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_llamafile_processor.py

@@ -458,5 +458,132 @@ class TestLlamaFileProcessorSimple(IsolatedAsyncioTestCase):
         # No specific rate limit error handling tested since SLM presumably has no rate limits
 
 
+    @patch('trustgraph.model.text_completion.llamafile.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_model_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with model parameter override"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response from overridden model"
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'LLaMA_CPP',
+            'llamafile': 'http://localhost:8080/v1',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model
+        result = await processor.generate_content("System", "Prompt", model="custom-llamafile-model")
+
+        # Assert
+        assert result.model == "custom-llamafile-model"  # Should use overridden model
+        assert result.text == "Response from overridden model"
+
+        # Verify the API call was made with overridden model
+        call_args = mock_openai_client.chat.completions.create.call_args
+        assert call_args[1]['model'] == "custom-llamafile-model"
+
+    @patch('trustgraph.model.text_completion.llamafile.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_temperature_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with temperature parameter override"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with temperature override"
+        mock_response.usage.prompt_tokens = 18
+        mock_response.usage.completion_tokens = 12
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'LLaMA_CPP',
+            'llamafile': 'http://localhost:8080/v1',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature
+        result = await processor.generate_content("System", "Prompt", temperature=0.7)
+
+        # Assert
+        assert result.text == "Response with temperature override"
+
+        # Verify the API call was made with overridden temperature
+        call_args = mock_openai_client.chat.completions.create.call_args
+        assert call_args[1]['temperature'] == 0.7
+
+    @patch('trustgraph.model.text_completion.llamafile.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_both_parameters_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with both model and temperature overrides"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with both parameters override"
+        mock_response.usage.prompt_tokens = 20
+        mock_response.usage.completion_tokens = 15
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'LLaMA_CPP',
+            'llamafile': 'http://localhost:8080/v1',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters
+        result = await processor.generate_content("System", "Prompt", model="override-model", temperature=0.8)
+
+        # Assert
+        assert result.model == "override-model"
+        assert result.text == "Response with both parameters override"
+
+        # Verify the API call was made with overridden parameters
+        call_args = mock_openai_client.chat.completions.create.call_args
+        assert call_args[1]['model'] == "override-model"
+        assert call_args[1]['temperature'] == 0.8
+
+
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_lmstudio_processor.py

@@ -0,0 +1,229 @@
+"""
+Unit tests for trustgraph.model.text_completion.lmstudio
+Following the same successful pattern as previous tests
+"""
+
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+from unittest import IsolatedAsyncioTestCase
+
+# Import the service under test
+from trustgraph.model.text_completion.lmstudio.llm import Processor
+from trustgraph.base import LlmResult
+from trustgraph.exceptions import TooManyRequests
+
+
+class TestLMStudioProcessorSimple(IsolatedAsyncioTestCase):
+    """Test LMStudio processor functionality"""
+
+    @patch('trustgraph.model.text_completion.lmstudio.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_processor_initialization_basic(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test basic processor initialization"""
+        # Arrange
+        mock_openai = MagicMock()
+        mock_openai_class.return_value = mock_openai
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemma3:9b',
+            'url': 'http://localhost:1234/',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        # Act
+        processor = Processor(**config)
+
+        # Assert
+        assert processor.default_model == 'gemma3:9b'
+        assert processor.url == 'http://localhost:1234/v1/'
+        assert processor.temperature == 0.0
+        assert processor.max_output == 4096
+        assert hasattr(processor, 'openai')
+        mock_openai_class.assert_called_once_with(
+            base_url='http://localhost:1234/v1/',
+            api_key='sk-no-key-required'
+        )
+
+    @patch('trustgraph.model.text_completion.lmstudio.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_success(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test successful content generation"""
+        # Arrange
+        mock_openai = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Generated response from LMStudio'
+        mock_response.usage.prompt_tokens = 20
+        mock_response.usage.completion_tokens = 12
+
+        mock_openai.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemma3:9b',
+            'url': 'http://localhost:1234/',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act
+        result = await processor.generate_content("System prompt", "User prompt")
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Generated response from LMStudio"
+        assert result.in_token == 20
+        assert result.out_token == 12
+        assert result.model == 'gemma3:9b'
+
+        # Verify the API call was made correctly
+        mock_openai.chat.completions.create.assert_called_once()
+        call_args = mock_openai.chat.completions.create.call_args
+
+        # Check model and temperature
+        assert call_args[1]['model'] == 'gemma3:9b'
+        assert call_args[1]['temperature'] == 0.0
+        assert call_args[1]['max_tokens'] == 4096
+
+    @patch('trustgraph.model.text_completion.lmstudio.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_model_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with model parameter override"""
+        # Arrange
+        mock_openai = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response from overridden model'
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemma3:9b',
+            'url': 'http://localhost:1234/',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model
+        result = await processor.generate_content("System", "Prompt", model="custom-lmstudio-model")
+
+        # Assert
+        assert result.model == "custom-lmstudio-model"  # Should use overridden model
+        assert result.text == "Response from overridden model"
+
+        # Verify the API call was made with overridden model
+        call_args = mock_openai.chat.completions.create.call_args
+        assert call_args[1]['model'] == "custom-lmstudio-model"
+
+    @patch('trustgraph.model.text_completion.lmstudio.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_temperature_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with temperature parameter override"""
+        # Arrange
+        mock_openai = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with temperature override'
+        mock_response.usage.prompt_tokens = 18
+        mock_response.usage.completion_tokens = 12
+
+        mock_openai.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemma3:9b',
+            'url': 'http://localhost:1234/',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature
+        result = await processor.generate_content("System", "Prompt", temperature=0.7)
+
+        # Assert
+        assert result.text == "Response with temperature override"
+
+        # Verify the API call was made with overridden temperature
+        call_args = mock_openai.chat.completions.create.call_args
+        assert call_args[1]['temperature'] == 0.7
+
+    @patch('trustgraph.model.text_completion.lmstudio.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_both_parameters_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test generate_content with both model and temperature overrides"""
+        # Arrange
+        mock_openai = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with both parameters override'
+        mock_response.usage.prompt_tokens = 20
+        mock_response.usage.completion_tokens = 15
+
+        mock_openai.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemma3:9b',
+            'url': 'http://localhost:1234/',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters
+        result = await processor.generate_content("System", "Prompt", model="override-model", temperature=0.8)
+
+        # Assert
+        assert result.model == "override-model"
+        assert result.text == "Response with both parameters override"
+
+        # Verify the API call was made with overridden parameters
+        call_args = mock_openai.chat.completions.create.call_args
+        assert call_args[1]['model'] == "override-model"
+        assert call_args[1]['temperature'] == 0.8
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])

tests/unit/test_text_completion/test_mistral_processor.py

@@ -0,0 +1,275 @@
+"""
+Unit tests for trustgraph.model.text_completion.mistral
+Following the same successful pattern as other processor tests
+"""
+
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+from unittest import IsolatedAsyncioTestCase
+
+# Import the service under test
+from trustgraph.model.text_completion.mistral.llm import Processor
+from trustgraph.base import LlmResult
+
+
+class TestMistralProcessorSimple(IsolatedAsyncioTestCase):
+    """Test Mistral processor functionality"""
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_processor_initialization_basic(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test basic processor initialization"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',
+            'api_key': 'test-api-key',
+            'temperature': 0.1,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        # Act
+        processor = Processor(**config)
+
+        # Assert
+        assert processor.default_model == 'ministral-8b-latest'
+        assert processor.temperature == 0.1
+        assert processor.max_output == 2048
+        assert hasattr(processor, 'mistral')
+        mock_mistral_class.assert_called_once_with(api_key='test-api-key')
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_success(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test successful content generation"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Generated response from Mistral'
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 8
+        mock_mistral_client.chat.complete.return_value = mock_response
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act
+        result = await processor.generate_content("System prompt", "User prompt")
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Generated response from Mistral"
+        assert result.in_token == 15
+        assert result.out_token == 8
+        assert result.model == 'ministral-8b-latest'
+        mock_mistral_client.chat.complete.assert_called_once()
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with custom temperature'
+        mock_response.usage.prompt_tokens = 20
+        mock_response.usage.completion_tokens = 12
+        mock_mistral_client.chat.complete.return_value = mock_response
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Mistral API was called with overridden temperature
+        call_args = mock_mistral_client.chat.complete.call_args
+        assert call_args[1]['temperature'] == 0.8  # Should use runtime override
+        assert call_args[1]['model'] == 'ministral-8b-latest'
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with custom model'
+        mock_response.usage.prompt_tokens = 18
+        mock_response.usage.completion_tokens = 14
+        mock_mistral_client.chat.complete.return_value = mock_response
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.1,   # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="mistral-large-latest",    # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Mistral API was called with overridden model
+        call_args = mock_mistral_client.chat.complete.call_args
+        assert call_args[1]['model'] == 'mistral-large-latest'  # Should use runtime override
+        assert call_args[1]['temperature'] == 0.1  # Should use processor default
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with both overrides'
+        mock_response.usage.prompt_tokens = 22
+        mock_response.usage.completion_tokens = 16
+        mock_mistral_client.chat.complete.return_value = mock_response
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',    # Default model
+            'api_key': 'test-api-key',
+            'temperature': 0.0,   # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="mistral-large-latest",  # Override model
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Mistral API was called with both overrides
+        call_args = mock_mistral_client.chat.complete.call_args
+        assert call_args[1]['model'] == 'mistral-large-latest'  # Should use runtime override
+        assert call_args[1]['temperature'] == 0.9  # Should use runtime override
+
+    @patch('trustgraph.model.text_completion.mistral.llm.Mistral')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_prompt_construction(self, mock_llm_init, mock_async_init, mock_mistral_class):
+        """Test prompt construction with system and user prompts"""
+        # Arrange
+        mock_mistral_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices[0].message.content = 'Response with system instructions'
+        mock_response.usage.prompt_tokens = 25
+        mock_response.usage.completion_tokens = 15
+        mock_mistral_client.chat.complete.return_value = mock_response
+        mock_mistral_class.return_value = mock_mistral_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'ministral-8b-latest',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act
+        result = await processor.generate_content("You are a helpful assistant", "What is AI?")
+
+        # Assert
+        assert result.text == "Response with system instructions"
+        assert result.in_token == 25
+        assert result.out_token == 15
+
+        # Verify the combined prompt structure
+        call_args = mock_mistral_client.chat.complete.call_args
+        messages = call_args[1]['messages']
+        assert len(messages) == 1
+        assert messages[0]['role'] == 'user'
+        assert messages[0]['content'][0]['type'] == 'text'
+        assert messages[0]['content'][0]['text'] == "You are a helpful assistant\n\nWhat is AI?"
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])

tests/unit/test_text_completion/test_ollama_processor.py

@@ -312,6 +312,150 @@ class TestOllamaProcessorSimple(IsolatedAsyncioTestCase):
         # Verify the combined prompt
         mock_client.generate.assert_called_once_with('llama2', "You are a helpful assistant\n\nWhat is AI?", options={'temperature': 0.0})
 
+    @patch('trustgraph.model.text_completion.ollama.llm.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_client_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_response = {
+            'response': 'Response with custom temperature',
+            'prompt_eval_count': 20,
+            'eval_count': 12
+        }
+        mock_client.generate.return_value = mock_response
+        mock_client_class.return_value = mock_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'llama2',
+            'ollama': 'http://localhost:11434',
+            'temperature': 0.0,  # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Ollama API was called with overridden temperature
+        mock_client.generate.assert_called_once_with(
+            'llama2',
+            "System prompt\n\nUser prompt",
+            options={'temperature': 0.8}  # Should use runtime override
+        )
+
+    @patch('trustgraph.model.text_completion.ollama.llm.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_client_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_response = {
+            'response': 'Response with custom model',
+            'prompt_eval_count': 18,
+            'eval_count': 14
+        }
+        mock_client.generate.return_value = mock_response
+        mock_client_class.return_value = mock_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'llama2',    # Default model
+            'ollama': 'http://localhost:11434',
+            'temperature': 0.1,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="mistral",    # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify Ollama API was called with overridden model
+        mock_client.generate.assert_called_once_with(
+            'mistral',  # Should use runtime override
+            "System prompt\n\nUser prompt",
+            options={'temperature': 0.1}  # Should use processor default
+        )
+
+    @patch('trustgraph.model.text_completion.ollama.llm.Client')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_client_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_response = {
+            'response': 'Response with both overrides',
+            'prompt_eval_count': 22,
+            'eval_count': 16
+        }
+        mock_client.generate.return_value = mock_response
+        mock_client_class.return_value = mock_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'llama2',    # Default model
+            'ollama': 'http://localhost:11434',
+            'temperature': 0.0,   # Default temperature
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="codellama",  # Override model
+            temperature=0.9     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify Ollama API was called with both overrides
+        mock_client.generate.assert_called_once_with(
+            'codellama',  # Should use runtime override
+            "System prompt\n\nUser prompt",
+            options={'temperature': 0.9}  # Should use runtime override
+        )
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_openai_processor.py

@@ -391,5 +391,210 @@ class TestOpenAIProcessorSimple(IsolatedAsyncioTestCase):
         assert call_args[1]['response_format'] == {"type": "text"}
 
 
+    @patch('trustgraph.model.text_completion.openai.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with custom temperature"
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-3.5-turbo',
+            'api_key': 'test-api-key',
+            'url': 'https://api.openai.com/v1',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.9  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify the OpenAI API was called with overridden temperature
+        mock_openai_client.chat.completions.create.assert_called_once()
+        call_kwargs = mock_openai_client.chat.completions.create.call_args.kwargs
+
+        assert call_kwargs['temperature'] == 0.9      # Should use runtime override
+        assert call_kwargs['model'] == 'gpt-3.5-turbo'  # Should use processor default
+
+    @patch('trustgraph.model.text_completion.openai.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with custom model"
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-3.5-turbo',  # Default model
+            'api_key': 'test-api-key',
+            'url': 'https://api.openai.com/v1',
+            'temperature': 0.2,
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gpt-4",      # Override model
+            temperature=None    # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify the OpenAI API was called with overridden model
+        mock_openai_client.chat.completions.create.assert_called_once()
+        call_kwargs = mock_openai_client.chat.completions.create.call_args.kwargs
+
+        assert call_kwargs['model'] == 'gpt-4'        # Should use runtime override
+        assert call_kwargs['temperature'] == 0.2      # Should use processor default
+
+    @patch('trustgraph.model.text_completion.openai.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with both overrides"
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-3.5-turbo',  # Default model
+            'api_key': 'test-api-key',
+            'url': 'https://api.openai.com/v1',
+            'temperature': 0.0,        # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gpt-4",      # Override model
+            temperature=0.7     # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify the OpenAI API was called with both overrides
+        mock_openai_client.chat.completions.create.assert_called_once()
+        call_kwargs = mock_openai_client.chat.completions.create.call_args.kwargs
+
+        assert call_kwargs['model'] == 'gpt-4'        # Should use runtime override
+        assert call_kwargs['temperature'] == 0.7      # Should use runtime override
+
+    @patch('trustgraph.model.text_completion.openai.llm.OpenAI')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_no_override_uses_defaults(self, mock_llm_init, mock_async_init, mock_openai_class):
+        """Test that when no parameters are overridden, processor defaults are used"""
+        # Arrange
+        mock_openai_client = MagicMock()
+        mock_response = MagicMock()
+        mock_response.choices = [MagicMock()]
+        mock_response.choices[0].message.content = "Response with defaults"
+        mock_response.usage.prompt_tokens = 15
+        mock_response.usage.completion_tokens = 10
+
+        mock_openai_client.chat.completions.create.return_value = mock_response
+        mock_openai_class.return_value = mock_openai_client
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gpt-4',      # Default model
+            'api_key': 'test-api-key',
+            'url': 'https://api.openai.com/v1',
+            'temperature': 0.5,    # Default temperature
+            'max_output': 4096,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Don't override any parameters (pass None)
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,       # Use default model
+            temperature=None  # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with defaults"
+
+        # Verify the OpenAI API was called with processor defaults
+        mock_openai_client.chat.completions.create.assert_called_once()
+        call_kwargs = mock_openai_client.chat.completions.create.call_args.kwargs
+
+        assert call_kwargs['model'] == 'gpt-4'        # Should use processor default
+        assert call_kwargs['temperature'] == 0.5      # Should use processor default
+
+
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_parameter_caching.py

@@ -0,0 +1,186 @@
+"""
+Unit tests for Parameter-Based Caching in LLM Processors
+Testing processors that cache based on temperature parameters (Bedrock, GoogleAIStudio)
+"""
+
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+from unittest import IsolatedAsyncioTestCase
+
+from trustgraph.model.text_completion.googleaistudio.llm import Processor as GoogleAIProcessor
+from trustgraph.base import LlmResult
+
+
+class TestParameterCaching(IsolatedAsyncioTestCase):
+    """Test parameter-based caching functionality"""
+
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_googleai_temperature_cache_keys(self, mock_llm_init, mock_async_init, mock_genai):
+        """Test that GoogleAI processor creates separate cache entries for different temperatures"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_genai.Client.return_value = mock_client
+
+        mock_response = MagicMock()
+        mock_response.text = "Generated response"
+        mock_response.usage_metadata.prompt_token_count = 10
+        mock_response.usage_metadata.candidates_token_count = 5
+        mock_client.models.generate_content.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 1024,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = GoogleAIProcessor(**config)
+
+        # Act - Call with different temperatures
+        await processor.generate_content("System", "Prompt 1", model="gemini-2.0-flash-001", temperature=0.0)
+        await processor.generate_content("System", "Prompt 2", model="gemini-2.0-flash-001", temperature=0.5)
+        await processor.generate_content("System", "Prompt 3", model="gemini-2.0-flash-001", temperature=1.0)
+
+        # Assert - Should have 3 different cache entries
+        cache_keys = list(processor.generation_configs.keys())
+
+        assert len(cache_keys) == 3
+        assert "gemini-2.0-flash-001:0.0" in cache_keys
+        assert "gemini-2.0-flash-001:0.5" in cache_keys
+        assert "gemini-2.0-flash-001:1.0" in cache_keys
+
+        # Verify each cached config has the correct temperature
+        assert processor.generation_configs["gemini-2.0-flash-001:0.0"].temperature == 0.0
+        assert processor.generation_configs["gemini-2.0-flash-001:0.5"].temperature == 0.5
+        assert processor.generation_configs["gemini-2.0-flash-001:1.0"].temperature == 1.0
+
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_googleai_cache_reuse_same_parameters(self, mock_llm_init, mock_async_init, mock_genai):
+        """Test that GoogleAI processor reuses cache for identical model+temperature combinations"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_genai.Client.return_value = mock_client
+
+        mock_response = MagicMock()
+        mock_response.text = "Generated response"
+        mock_response.usage_metadata.prompt_token_count = 10
+        mock_response.usage_metadata.candidates_token_count = 5
+        mock_client.models.generate_content.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,
+            'max_output': 1024,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = GoogleAIProcessor(**config)
+
+        # Act - Call multiple times with same parameters
+        await processor.generate_content("System", "Prompt 1", model="gemini-2.0-flash-001", temperature=0.7)
+        await processor.generate_content("System", "Prompt 2", model="gemini-2.0-flash-001", temperature=0.7)
+        await processor.generate_content("System", "Prompt 3", model="gemini-2.0-flash-001", temperature=0.7)
+
+        # Assert - Should have only 1 cache entry for the repeated parameters
+        cache_keys = list(processor.generation_configs.keys())
+        assert len(cache_keys) == 1
+        assert "gemini-2.0-flash-001:0.7" in cache_keys
+
+        # The same config object should be reused
+        config_obj = processor.generation_configs["gemini-2.0-flash-001:0.7"]
+        assert config_obj.temperature == 0.7
+
+    @patch('trustgraph.model.text_completion.googleaistudio.llm.genai')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_googleai_different_models_separate_caches(self, mock_llm_init, mock_async_init, mock_genai):
+        """Test that different models create separate cache entries even with same temperature"""
+        # Arrange
+        mock_client = MagicMock()
+        mock_genai.Client.return_value = mock_client
+
+        mock_response = MagicMock()
+        mock_response.text = "Generated response"
+        mock_response.usage_metadata.prompt_token_count = 10
+        mock_response.usage_metadata.candidates_token_count = 5
+        mock_client.models.generate_content.return_value = mock_response
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'gemini-2.0-flash-001',
+            'api_key': 'test-api-key',
+            'temperature': 0.0,
+            'max_output': 1024,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = GoogleAIProcessor(**config)
+
+        # Act - Call with different models, same temperature
+        await processor.generate_content("System", "Prompt 1", model="gemini-2.0-flash-001", temperature=0.5)
+        await processor.generate_content("System", "Prompt 2", model="gemini-1.5-flash-001", temperature=0.5)
+
+        # Assert - Should have separate cache entries for different models
+        cache_keys = list(processor.generation_configs.keys())
+        assert len(cache_keys) == 2
+        assert "gemini-2.0-flash-001:0.5" in cache_keys
+        assert "gemini-1.5-flash-001:0.5" in cache_keys
+
+    # Note: Bedrock tests would be similar but testing the Bedrock processor's caching behavior
+    # The Bedrock processor caches model variants with temperature in the cache key
+
+    async def test_bedrock_temperature_cache_keys(self):
+        """Test Bedrock processor temperature-aware caching"""
+        # This would test the Bedrock processor's _get_or_create_variant method
+        # with different temperature values to ensure proper cache key generation
+
+        # Implementation would follow similar pattern to GoogleAI tests above
+        # but using the Bedrock processor and testing model_variants cache
+        pass
+
+    async def test_bedrock_cache_isolation_different_temperatures(self):
+        """Test that Bedrock processor isolates cache entries by temperature"""
+        pass
+
+    async def test_cache_memory_efficiency(self):
+        """Test that caches don't grow unbounded with many different parameter combinations"""
+        # This could test cache size limits or cleanup behavior if implemented
+        pass
+
+
+class TestCachePerformance(IsolatedAsyncioTestCase):
+    """Test caching performance characteristics"""
+
+    async def test_cache_hit_performance(self):
+        """Test that cache hits are faster than cache misses"""
+        # This would measure timing differences between cache hits and misses
+        pass
+
+    async def test_concurrent_cache_access(self):
+        """Test concurrent access to cached configurations"""
+        # This would test thread-safety of cache access
+        pass
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])

tests/unit/test_text_completion/test_tgi_processor.py

@@ -0,0 +1,271 @@
+"""
+Unit tests for trustgraph.model.text_completion.tgi
+Following the same successful pattern as previous tests
+"""
+
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+from unittest import IsolatedAsyncioTestCase
+
+# Import the service under test
+from trustgraph.model.text_completion.tgi.llm import Processor
+from trustgraph.base import LlmResult
+from trustgraph.exceptions import TooManyRequests
+
+
+class TestTGIProcessorSimple(IsolatedAsyncioTestCase):
+    """Test TGI processor functionality"""
+
+    @patch('trustgraph.model.text_completion.tgi.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_processor_initialization_basic(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test basic processor initialization"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'tgi',
+            'url': 'http://tgi-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        # Act
+        processor = Processor(**config)
+
+        # Assert
+        assert processor.default_model == 'tgi'
+        assert processor.base_url == 'http://tgi-service:8899/v1'
+        assert processor.temperature == 0.0
+        assert processor.max_output == 2048
+        assert hasattr(processor, 'session')
+        mock_session_class.assert_called_once()
+
+    @patch('trustgraph.model.text_completion.tgi.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_success(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test successful content generation"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'message': {
+                    'content': 'Generated response from TGI'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 20,
+                'completion_tokens': 12
+            }
+        })
+
+        # Mock the async context manager
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'tgi',
+            'url': 'http://tgi-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act
+        result = await processor.generate_content("System prompt", "User prompt")
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Generated response from TGI"
+        assert result.in_token == 20
+        assert result.out_token == 12
+        assert result.model == 'tgi'
+
+        # Verify the API call was made correctly
+        mock_session.post.assert_called_once()
+        call_args = mock_session.post.call_args
+
+        # Check URL
+        assert call_args[0][0] == 'http://tgi-service:8899/v1/chat/completions'
+
+        # Check request structure
+        request_body = call_args[1]['json']
+        assert request_body['model'] == 'tgi'
+        assert request_body['temperature'] == 0.0
+        assert request_body['max_tokens'] == 2048
+
+    @patch('trustgraph.model.text_completion.tgi.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_model_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with model parameter override"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'message': {
+                    'content': 'Response from overridden model'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 15,
+                'completion_tokens': 10
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'tgi',
+            'url': 'http://tgi-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model
+        result = await processor.generate_content("System", "Prompt", model="custom-tgi-model")
+
+        # Assert
+        assert result.model == "custom-tgi-model"  # Should use overridden model
+        assert result.text == "Response from overridden model"
+
+        # Verify the API call was made with overridden model
+        call_args = mock_session.post.call_args
+        assert call_args[1]['json']['model'] == "custom-tgi-model"
+
+    @patch('trustgraph.model.text_completion.tgi.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_temperature_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with temperature parameter override"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'message': {
+                    'content': 'Response with temperature override'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 18,
+                'completion_tokens': 12
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'tgi',
+            'url': 'http://tgi-service:8899/v1',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature
+        result = await processor.generate_content("System", "Prompt", temperature=0.7)
+
+        # Assert
+        assert result.text == "Response with temperature override"
+
+        # Verify the API call was made with overridden temperature
+        call_args = mock_session.post.call_args
+        assert call_args[1]['json']['temperature'] == 0.7
+
+    @patch('trustgraph.model.text_completion.tgi.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_both_parameters_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with both model and temperature overrides"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'message': {
+                    'content': 'Response with both parameters override'
+                }
+            }],
+            'usage': {
+                'prompt_tokens': 20,
+                'completion_tokens': 15
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'tgi',
+            'url': 'http://tgi-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters
+        result = await processor.generate_content("System", "Prompt", model="override-model", temperature=0.8)
+
+        # Assert
+        assert result.model == "override-model"
+        assert result.text == "Response with both parameters override"
+
+        # Verify the API call was made with overridden parameters
+        call_args = mock_session.post.call_args
+        assert call_args[1]['json']['model'] == "override-model"
+        assert call_args[1]['json']['temperature'] == 0.8
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])

tests/unit/test_text_completion/test_vertexai_processor.py

@@ -460,6 +460,180 @@ class TestVertexAIProcessorSimple(IsolatedAsyncioTestCase):
         assert processor.api_params["top_p"] == 1.0
         assert processor.api_params["top_k"] == 32
 
+    @patch('trustgraph.model.text_completion.vertexai.llm.service_account')
+    @patch('trustgraph.model.text_completion.vertexai.llm.vertexai')
+    @patch('trustgraph.model.text_completion.vertexai.llm.GenerativeModel')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_temperature_override(self, mock_llm_init, mock_async_init, mock_generative_model, mock_vertexai, mock_service_account):
+        """Test temperature parameter override functionality"""
+        # Arrange
+        mock_credentials = MagicMock()
+        mock_service_account.Credentials.from_service_account_file.return_value = mock_credentials
+
+        mock_model = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = "Response with custom temperature"
+        mock_response.usage_metadata.prompt_token_count = 20
+        mock_response.usage_metadata.candidates_token_count = 12
+        mock_model.generate_content.return_value = mock_response
+        mock_generative_model.return_value = mock_model
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'region': 'us-central1',
+            'model': 'gemini-2.0-flash-001',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 8192,
+            'private_key': 'private.json',
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model=None,      # Use default model
+            temperature=0.8  # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom temperature"
+
+        # Verify Gemini API was called with overridden temperature
+        mock_model.generate_content.assert_called_once()
+        call_args = mock_model.generate_content.call_args
+
+        # Check that generation_config was created (we can't directly access temperature from mock)
+        generation_config = call_args.kwargs['generation_config']
+        assert generation_config is not None  # Should use overridden temperature configuration
+
+    @patch('trustgraph.model.text_completion.vertexai.llm.service_account')
+    @patch('trustgraph.model.text_completion.vertexai.llm.vertexai')
+    @patch('trustgraph.model.text_completion.vertexai.llm.GenerativeModel')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_model_override(self, mock_llm_init, mock_async_init, mock_generative_model, mock_vertexai, mock_service_account):
+        """Test model parameter override functionality"""
+        # Arrange
+        mock_credentials = MagicMock()
+        mock_service_account.Credentials.from_service_account_file.return_value = mock_credentials
+
+        # Mock different models
+        mock_model_default = MagicMock()
+        mock_model_override = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = "Response with custom model"
+        mock_response.usage_metadata.prompt_token_count = 18
+        mock_response.usage_metadata.candidates_token_count = 14
+        mock_model_override.generate_content.return_value = mock_response
+
+        # GenerativeModel should return different models based on input
+        def model_factory(model_name):
+            if model_name == 'gemini-1.5-pro':
+                return mock_model_override
+            return mock_model_default
+
+        mock_generative_model.side_effect = model_factory
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'region': 'us-central1',
+            'model': 'gemini-2.0-flash-001',  # Default model
+            'temperature': 0.2,               # Default temperature
+            'max_output': 8192,
+            'private_key': 'private.json',
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gemini-1.5-pro",  # Override model
+            temperature=None         # Use default temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with custom model"
+
+        # Verify the overridden model was used
+        mock_model_override.generate_content.assert_called_once()
+        # Verify GenerativeModel was called with the override model
+        mock_generative_model.assert_called_with('gemini-1.5-pro')
+
+    @patch('trustgraph.model.text_completion.vertexai.llm.service_account')
+    @patch('trustgraph.model.text_completion.vertexai.llm.vertexai')
+    @patch('trustgraph.model.text_completion.vertexai.llm.GenerativeModel')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_both_parameters_override(self, mock_llm_init, mock_async_init, mock_generative_model, mock_vertexai, mock_service_account):
+        """Test overriding both model and temperature parameters simultaneously"""
+        # Arrange
+        mock_credentials = MagicMock()
+        mock_service_account.Credentials.from_service_account_file.return_value = mock_credentials
+
+        mock_model = MagicMock()
+        mock_response = MagicMock()
+        mock_response.text = "Response with both overrides"
+        mock_response.usage_metadata.prompt_token_count = 22
+        mock_response.usage_metadata.candidates_token_count = 16
+        mock_model.generate_content.return_value = mock_response
+        mock_generative_model.return_value = mock_model
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'region': 'us-central1',
+            'model': 'gemini-2.0-flash-001',  # Default model
+            'temperature': 0.0,               # Default temperature
+            'max_output': 8192,
+            'private_key': 'private.json',
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters at runtime
+        result = await processor.generate_content(
+            "System prompt",
+            "User prompt",
+            model="gemini-1.5-flash-001",  # Override model
+            temperature=0.9                # Override temperature
+        )
+
+        # Assert
+        assert isinstance(result, LlmResult)
+        assert result.text == "Response with both overrides"
+
+        # Verify both overrides were used
+        mock_model.generate_content.assert_called_once()
+        call_args = mock_model.generate_content.call_args
+
+        # Verify model override
+        mock_generative_model.assert_called_with('gemini-1.5-flash-001')  # Should use runtime override
+
+        # Verify temperature override (we can't directly access temperature from mock)
+        generation_config = call_args.kwargs['generation_config']
+        assert generation_config is not None  # Should use overridden temperature configuration
+
 
 if __name__ == '__main__':
     pytest.main([__file__])

tests/unit/test_text_completion/test_vllm_processor.py

@@ -485,5 +485,148 @@ class TestVLLMProcessorSimple(IsolatedAsyncioTestCase):
         assert call_args[1]['json']['prompt'] == expected_prompt
 
 
+    @patch('trustgraph.model.text_completion.vllm.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_model_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with model parameter override"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'text': 'Response from overridden model'
+            }],
+            'usage': {
+                'prompt_tokens': 12,
+                'completion_tokens': 8
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'TheBloke/Mistral-7B-v0.1-AWQ',
+            'url': 'http://vllm-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override model
+        result = await processor.generate_content("System", "Prompt", model="custom-vllm-model")
+
+        # Assert
+        assert result.model == "custom-vllm-model"  # Should use overridden model
+        assert result.text == "Response from overridden model"
+
+    @patch('trustgraph.model.text_completion.vllm.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_temperature_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with temperature parameter override"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'text': 'Response with temperature override'
+            }],
+            'usage': {
+                'prompt_tokens': 15,
+                'completion_tokens': 10
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'TheBloke/Mistral-7B-v0.1-AWQ',
+            'url': 'http://vllm-service:8899/v1',
+            'temperature': 0.0,  # Default temperature
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override temperature
+        result = await processor.generate_content("System", "Prompt", temperature=0.7)
+
+        # Assert
+        assert result.text == "Response with temperature override"
+
+        # Verify the request was made with overridden temperature
+        call_args = mock_session.post.call_args
+        assert call_args[1]['json']['temperature'] == 0.7
+
+    @patch('trustgraph.model.text_completion.vllm.llm.aiohttp.ClientSession')
+    @patch('trustgraph.base.async_processor.AsyncProcessor.__init__')
+    @patch('trustgraph.base.llm_service.LlmService.__init__')
+    async def test_generate_content_with_both_parameters_override(self, mock_llm_init, mock_async_init, mock_session_class):
+        """Test generate_content with both model and temperature overrides"""
+        # Arrange
+        mock_session = MagicMock()
+        mock_response = MagicMock()
+        mock_response.status = 200
+        mock_response.json = AsyncMock(return_value={
+            'choices': [{
+                'text': 'Response with both parameters override'
+            }],
+            'usage': {
+                'prompt_tokens': 18,
+                'completion_tokens': 12
+            }
+        })
+
+        mock_session.post.return_value.__aenter__.return_value = mock_response
+        mock_session.post.return_value.__aexit__.return_value = None
+        mock_session_class.return_value = mock_session
+
+        mock_async_init.return_value = None
+        mock_llm_init.return_value = None
+
+        config = {
+            'model': 'TheBloke/Mistral-7B-v0.1-AWQ',
+            'url': 'http://vllm-service:8899/v1',
+            'temperature': 0.0,
+            'max_output': 2048,
+            'concurrency': 1,
+            'taskgroup': AsyncMock(),
+            'id': 'test-processor'
+        }
+
+        processor = Processor(**config)
+
+        # Act - Override both parameters
+        result = await processor.generate_content("System", "Prompt", model="override-model", temperature=0.8)
+
+        # Assert
+        assert result.model == "override-model"
+        assert result.text == "Response with both parameters override"
+
+        # Verify the request was made with overridden temperature
+        call_args = mock_session.post.call_args
+        assert call_args[1]['json']['temperature'] == 0.8
+
+
 if __name__ == '__main__':
     pytest.main([__file__])