Update app.py

app.py

@@ -131,7 +131,7 @@ def show_mbti_quiz():
                     """
                     try:
                         response = openai.ChatCompletion.create(
-                            model="gpt-4",
+                            model="gpt-4o",
                             messages=[{"role": "system", "content": "You are a helpful assistant."},
                                       {"role": "user", "content": prompt}]
                         )