revertted to chatgpt models for claude code routing

demos/use_cases/claude_code_router/config.yaml

@@ -9,10 +9,8 @@ listeners:
 
 llm_providers:
   # OpenAI Models
-
-  - model: amazon_bedrock/us.amazon.nova-premier-v1:0
-    access_key: $AWS_BEARER_TOKEN_BEDROCK
-    base_url: https://bedrock-runtime.us-west-2.amazonaws.com
+  - model: openai/gpt-5-2025-08-07
+    access_key: $OPENAI_API_KEY
     routing_preferences:
       - name: code generation
         description: generating new code snippets, functions, or boilerplate based on user prompts or requirements
@@ -28,7 +26,7 @@ llm_providers:
     default: true
     access_key: $ANTHROPIC_API_KEY
 
-  - model: anthropic/claude-haiku-4-5-20251001
+  - model: anthropic/claude-3-haiku-20240307
     access_key: $ANTHROPIC_API_KEY
 
   # Ollama Models
@@ -40,4 +38,4 @@ llm_providers:
 model_aliases:
   # Alias for a small faster Claude model
   arch.claude.code.small.fast:
-    target: claude-haiku-4-5-20251001
+    target: claude-3-haiku-20240307