Update app.py

app.py

@@ -26,7 +26,7 @@ def transcribe(audio):
 def generate_response(text, api_key):
     client = OpenAI(api_key=api_key)
     response = client.chat.completions.create(
-        model='gpt-4o-mini',
+        model='gpt-3.5-turbo-0125',
         messages=[{"role": "user", "content": text}]
     )