Update app.py

app.py

@@ -525,7 +525,7 @@ def transcribe(audio, text, submit_update=None):
     with concurrent.futures.ThreadPoolExecutor() as executor:
         prompt = [{"text": f"{message['role']}: {message['content']}\n\n"} for message in messages]
         system_message = openai.ChatCompletion.create(
-            model="gpt-3.5-turbo",
+            model="gpt-4",
             messages=messages,
             max_tokens=2000
         )["choices"][0]["message"]