Update app.py

app.py

@@ -23,7 +23,7 @@ def chat_with_groq(message, history):
 
     # Call Groq API
     completion = client.chat.completions.create(
-        model="mixtral-8x7b",  # You can change to "llama3-8b" etc.
+        model="openai/gpt-oss-20b",  # You can change to "llama3-8b" etc.
         messages=messages,
         temperature=0.7,
     )