Update app.py

app.py

@@ -639,7 +639,7 @@ Failure to provide arguments in this exact JSON format will cause an error.
             chat_llm = ChatGroq(
                 temperature=0,  # Maximum determinism
                 groq_api_key=GROQ_API_KEY,
-                model_name="openai/gpt-oss-120b",  # Best reasoning model
+                model_name="meta-llama/llama-4-scout-17b-16e-instruct",  # Best reasoning model
                 max_tokens=4096,
                 timeout=60
             )