今天试了试codex的gpt5.1模型，发现mini和max都用不了了，报错{“type”:“error”,“status”:400,“error”:{“type”:“invalid_request_error”,“message”:“The ‘gpt-5.1-codex-max’ model is not supported when using Codex with a ChatGPT account.”}}，这是openai正式下架gpt5.1了吗 🥲