Update app.py

app.py

@@ -779,7 +779,7 @@ def groq_with_memory(message: str, topic: str = "general", retries: int = 3) ->
         
         # Updated payload with refined system prompt
         payload = {
-            "model": "qwen-qwq-32b",
+            "model": "meta-llama/llama-4-maverick-17b-128e-instruct",
             "messages": [
                 {
                     "role": "system",