use provider_id/model_id for model

arch/arch_config_schema.yaml

@@ -66,21 +66,6 @@ properties:
       properties:
         name:
           type: string
-        # provider field is deprecated, use provider_interface instead
-        provider:
-          type: string
-          enum:
-            - openai
-        provider_interface:
-          type: string
-          enum:
-            - arch
-            - claude
-            - deepseek
-            - groq
-            - mistral
-            - openai
-            - gemini
         access_key:
           type: string
         model:
@@ -104,7 +89,6 @@ properties:
       additionalProperties: false
       required:
         - model
-        - provider_interface
   overrides:
     type: object
     properties:

arch/tools/cli/config_generator.py

@@ -19,6 +19,16 @@ ARCH_CONFIG_SCHEMA_FILE = os.getenv(
     "ARCH_CONFIG_SCHEMA_FILE", "arch_config_schema.yaml"
 )
 
+SUPPORTED_PROVIDERS = [
+    "arch",
+    "claude",
+    "deepseek",
+    "groq",
+    "mistral",
+    "openai",
+    "gemini",
+]
+
 
 def get_endpoint_and_port(endpoint, protocol):
     endpoint_tokens = endpoint.split(":")
@@ -92,10 +102,24 @@ def validate_and_render_schema():
             raise Exception(
                 f"Duplicate llm_provider name {llm_provider.get('name')}, please provide unique name for each llm_provider"
             )
+
+        model_name = llm_provider.get("model")
         if llm_provider.get("name") is None:
-            provider_interface = llm_provider.get("provider_interface", "unknown")
-            model_name = llm_provider.get("model", "unknown")
-            llm_provider["name"] = f"{provider_interface}/{model_name}"
+            llm_provider["name"] = model_name
+
+        model_name_tokens = model_name.split("/")
+        if len(model_name_tokens) < 2:
+            raise Exception(
+                f"Invalid model name {model_name}. Please provide model name in the format <provider>/<model_id>."
+            )
+        provider = model_name_tokens[0]
+        model_id = "/".join(model_name_tokens[1:])
+        if provider not in SUPPORTED_PROVIDERS:
+            raise Exception(
+                f"Unsupported provider {provider} for model {model_name}. Supported providers are: {', '.join(SUPPORTED_PROVIDERS)}"
+            )
+
+        llm_provider["provider_interface"] = provider
         llm_provider_name_set.add(llm_provider.get("name"))
         provider = None
         if llm_provider.get("provider") and llm_provider.get("provider_interface"):

demos/use_cases/llm_routing/arch_config.yaml

@@ -10,37 +10,29 @@ listeners:
 llm_providers:
 
   - access_key: $OPENAI_API_KEY
-    provider_interface: openai
-    model: gpt-4o-mini
+    model: openai/gpt-4o-mini
 
   - access_key: $OPENAI_API_KEY
-    provider_interface: openai
-    model: gpt-4o
+    model: openai/gpt-4o
     default: true
 
   - access_key: $MISTRAL_API_KEY
-    provider_interface: mistral
-    model: ministral-3b-latest
+    model: mistral/ministral-3b-latest
 
   - access_key: $ANTHROPIC_API_KEY
-    provider_interface: claude
-    model: claude-3-7-sonnet-latest
+    model: claude/claude-3-7-sonnet-latest
 
   - access_key: $ANTHROPIC_API_KEY
-    provider_interface: claude
-    model: claude-sonnet-4-0
+    model: claude/claude-sonnet-4-0
 
   - access_key: $DEEPSEEK_API_KEY
-    provider_interface: deepseek
-    model: deepseek-reasoner
+    model: deepseek/deepseek-reasoner
 
   - access_key: $GROQ_API_KEY
-    provider_interface: groq
-    model: llama-3.1-8b-instant
+    model: groq/llama-3.1-8b-instant
 
   - access_key: $GEMINI_API_KEY
-    provider_interface: gemini
-    model: gemini-1.5-pro-latest
+    model: gemini/gemini-1.5-pro-latest
 
 tracing:
   random_sampling: 100

demos/use_cases/preference_based_routing/arch_config.yaml

@@ -9,25 +9,21 @@ listeners:
 
 llm_providers:
 
-  - provider_interface: openai
-    access_key: $OPENAI_API_KEY
-    model: gpt-4o-mini
+  - access_key: $OPENAI_API_KEY
+    model: openai/gpt-4o-mini
 
-  - provider_interface: openai
-    access_key: $OPENAI_API_KEY
-    model: gpt-4.1
+  - access_key: $OPENAI_API_KEY
+    model: openai/gpt-4.1
     default: true
 
   - name: code_generation
     access_key: $OPENAI_API_KEY
-    provider_interface: openai
-    model: gpt-4.1
+    model: openai/gpt-4.1
     usage: generating new code snippets, functions, or boilerplate based on user prompts or requirements
 
   - name: code_understanding
-    provider_interface: openai
     access_key: $OPENAI_API_KEY
-    model: gpt-4o-mini
+    model: openai/gpt-4o-mini
     usage: understand and explain existing code snippets, functions, or libraries
 
 tracing: