Update GPT Version

app.py

@@ -73,7 +73,7 @@ def generate_response(user_query, relevant_segment):
             {"role": "user", "content": user_message}
         ]
         response = openai.ChatCompletion.create(
-            model="gpt-4-turbo",  # Verify model name
+            model="gpt-3.5-turbo",  # Verify model name
             messages=messages,
             max_tokens=150,
             temperature=0.2,