Change llm model

agent.py

@@ -131,13 +131,11 @@ tools = [
 
 def build_graph():
     """Build the graph"""
-    # Initialize Groq LLM
     llm = ChatGroq(
-        model="meta-llama/llama-4-maverick-17b-128e-instruct",
+        model="llama2-70b-4096",
         temperature=0.1
     )
     
-    # Bind tools to LLM
     llm_with_tools = llm.bind_tools(tools)
 
     # Node

app.py

@@ -25,7 +25,6 @@ class BasicAgent:
 
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        # Wrap the question in a HumanMessage from langchain_core
         messages = [HumanMessage(content=question)]
         result = self.graph.invoke({"messages": messages})
         last_message = result['messages'][-1]