First

api.py

@@ -684,6 +684,16 @@ async def list_models():
         raise HTTPException(status_code=503, detail="Service unavailable: The backend driver is not ready.")
     except Exception as e:
         logger.error(f"An unexpected error occurred while fetching models: {e}", exc_info=True)
+        try:
+            driver = driver_manager.get_driver()
+            logger.info("Attempting captcha solve after models fetch error...")
+            driver.uc_gui_click_captcha()
+            driver_manager._perform_sync_captcha_checks(driver)
+            png = driver.get_screenshot_as_png()
+            b64 = base64.b64encode(png).decode('utf-8')
+            logger.error(f"Screenshot base64 after captcha solve: {b64}")
+        except Exception as captcha_err:
+            logger.error(f"Failed captcha solve/screenshot in models endpoint: {captcha_err}", exc_info=True)
         raise HTTPException(status_code=500, detail=f"An unexpected error occurred while fetching models: {str(e)}")
 
 @app.post("/chat/completions", response_model=ChatCompletionResponse)