Update app.py

app.py

@@ -160,8 +160,8 @@ with gr.Blocks() as chat_ui:
         full_response = ""
         for word in response_generator:
             full_response += word + " "
-            chat_history.append((user_input, full_response))
-            yield chat_history
+            yield chat_history[:-1] + [(user_input, full_response)]  # Update last message only
+        chat_history.append((user_input, full_response))
     
     send_btn.click(stream_response, inputs=[user_input, chatbot], outputs=[chatbot])