chagne gpt-4-turbo as default model in the demo to save fee

app.py

@@ -378,8 +378,8 @@ with gr.Blocks() as demo:
     key = gr.Textbox(label=f"Enter your OpenAI API Key (this space will not save your API Key). [Pay Attention]: this evaluaiton may cost several dollars, please notice your OpenAI API Key balance.", type="password")
     model = gr.Dropdown(
         choices=["gpt-4-0613", "gpt-4-turbo"],
-        value="gpt-4-0613",
-        label="Select GPt-4 model version (gpt-4-0613 is the default and gpt-4-turbo is cheaper)"
+        value="gpt-4-turbo",
+        label="Select GPt-4 model version (gpt-4-0613 is the default in the paper and gpt-4-turbo is cheaper)"
     )
     with gr.Row():
         inp = gr.File(file_types=[".json"])