Update app.py

app.py

@@ -29,7 +29,7 @@ def chat_with_groq(message, history):
         # Call Groq API
         chat_completion = client.chat.completions.create(
             messages=messages,
-            model="openai/gpt-oss-120b",   # your working model
+            model="mixtral-8x7b-32768",   # your working model
         )
 
         reply = chat_completion.choices[0].message.content