Update app.py

app.py

@@ -193,7 +193,7 @@ Guidelines:
 
         response = groq_client.chat.completions.create(
             messages=messages,
-            model="llama-3.1-70b-versatile",
+            model="llama-3.3-70b-versatile",
             temperature=temperature,
             max_tokens=2000,
             stream=False