Update app.py

app.py

@@ -190,7 +190,7 @@ with gr.Blocks(analytics_enabled=False, css=custom_css) as demo:
         )
 
     with gr.Row():
-        selected_model = gr.Radio(choices=model_names, value=model_names[1], label="Select a model")
+        selected_model = gr.Radio(choices=model_names, value=model_names[0], label="Select a model")
 
     with gr.Accordion(label="System Prompt", open=False, elem_id="parameters-accordion"):
         system_message = gr.Textbox(