Update app.py

app.py

@@ -3,9 +3,13 @@ import gradio as gr
 
 # Define the chat function
 def chat(api_key, message):
+    # Check if an API key has been provided
+    if api_key is None:
+        return "Please enter your OpenAI API key and try again."
+    
     # Set up the OpenAI API request
     response = openai.Completion.create(
-        engine="davinci",
+        engine="text-davinci-003",
         prompt=message,
         max_tokens=1024,
         n=1,
@@ -37,9 +41,5 @@ chat_button = gr.Interface(
     allow_share=False,
 )
 
-# Check if an API key has been provided
-if api_key_input.value is None:
-    print("Please enter your OpenAI API key and try again.")
-else:
-    # Launch the app
-    chat_button.launch()
+# Launch the app
+chat_button.launch()