moving to newer claude LLM version: claude-sonnet-4-5-20250929

rag_agent.py

@@ -18,7 +18,8 @@ class RAGAgent:
             retriever=retriever,
             reranker=reranker,
             anthropic_api_key: str = os.environ["anthropic_api_key"],
-            model_name: str = "claude-3-5-sonnet-20241022",
+            # model_name: str = "claude-3-5-sonnet-20241022",  # deprecated version of claude
+            model_name: str = "claude-sonnet-4-5-20250929",  # the model used up to 2025_11_15 date
             max_tokens: int = 1024,
             temperature: float = 0.0,
     ):