Update app.py

app.py

@@ -11,7 +11,7 @@ openai.api_key = st.secrets["OPENAI_API_KEY"]
 def call_openai_api(prompt):
     try:
         response = openai.ChatCompletion.create(
-            model="gpt-4",
+            model="gpt-4o",
             messages=[
                 {
                     "role": "system",