Update app.py

app.py

@@ -62,7 +62,7 @@ def generate_response(user_query, relevant_segment):
 
         # Use OpenAI's API to generate a response
         response = openai.ChatCompletion.create(
-            model="gpt-4",
+            model="gpt-4o",
             messages=messages,
             max_tokens=150,
             temperature=0.7,