msg = gr.Textbox(label="Message")

app.py

@@ -1195,7 +1195,7 @@ with gr.Blocks() as demo:
             chatbot = gr.Chatbot()
             thread_id = gr.Textbox(label="thread_id", visible=False)
             socratic_mode_btn = gr.Checkbox(label="蘇格拉底家教助理模式", value=False)
-            msg = gr.Textbox(label="Message", lines=3, max_length=1000)
+            msg = gr.Textbox(label="Message")
             send_button = gr.Button("Send")
 
         with gr.Column(scale=3):