Update app.py

app.py

@@ -374,7 +374,7 @@ You have access to the following tools to gather information and perform actions
             chat_llm = ChatGroq(
                 temperature=0.01,
                 groq_api_key=GROQ_API_KEY,
-                model_name="mixtral-8x7b-32768"
+                model_name="llama-3.1-8b-instant"
             )
             print("✅ Groq LLM Endpoint initialized.")
         except Exception as e: