Update app.py

app.py

@@ -277,8 +277,8 @@ def create_demo():
             with gr.Column(scale=1):
                 model_name = gr.Dropdown(
                     label="Model Selection",
-                    choices=["GPT-4.1", "GPT-4o", "o4-mini", "gemini-2.5-pro-preview-05-06", "claude-3-7-sonnet-latest", "claude-3-7-sonnet-thinking"],
-                    value="GPT-4.1"
+                    choices=["gpt-4.1", "gpt-4o", "o4-mini", "gemini-2.5-pro-preview-05-06", "claude-3-7-sonnet-latest", "claude-3-7-sonnet-thinking"],
+                    value="gpt-4.1"
                 )
                 api_key = gr.Textbox(label="OpenAI API Key", type="password", value="sk-kBQuM0gvNBhOHmKz43b3iQut01bsOgg8Pv76eMKguu6jvncm")
                 base_url = gr.Textbox(label="Base URL (optional)", value="https://api.claudeshop.top/v1")