Update app.py

app.py

@@ -68,7 +68,7 @@ def bot(chatbot, max_tokens, temperature, top_p):
 # Model selector handler
 def update_model(model_name):
     load_model(model_name)
-    return []
+    return gr.Dropdown.update(value=model_name)
 
 # Gradio UI
 with gr.Blocks(title="LeCarnet - Chat Interface") as demo:
@@ -117,7 +117,11 @@ with gr.Blocks(title="LeCarnet - Chat Interface") as demo:
             msg_input.render()
 
     # Event Handlers
-    model_selector.change(fn=update_model, inputs=[model_selector], outputs=[])
+    model_selector.change(
+    fn=update_model,
+    inputs=[model_selector],
+    outputs=[model_selector],
+    )
     msg_input.submit(fn=user, inputs=[msg_input, chatbot], outputs=[msg_input, chatbot], queue=False).then(
         fn=bot, inputs=[chatbot, max_tokens, temperature, top_p], outputs=[chatbot]
     )