看来阿里也吃不消了，算力不够啊 
现在 Openrouter 的免费 qwen/qwen3.6-plus:free 偶尔提示限速了 
{
  "error": {
    "message": "Provider returned error",
    "code": 429,
    "metadata": {
      "raw": "qwen/qwen3.6-plus:free is temporarily rate-limited upstream.\n     Please retry shortly, or add your own key to accumulate your rate limits:\n     https://openrouter.ai/settings/integrations",
      "provider_name": "Alibaba",
...