GPT-5.4 and GPT-5.4 mini will no longer be available for users signed in with ChatGPT starting August 31.
The models will remain available on the OpenAI API and Codex sessions authenticated with an API key.
AI 摘要
GPT-5.4 和 GPT-5.4 mini 将不再对使用 ChatGPT 登录的用户开放，自 8 月 31 日起生效。 这两个模型仍可通过 OpenAI API 以及使用 API 密钥认证的 Codex 会话使用。 https://learn.chatgpt.com/docs/changelog#codex-2026-07-31
GPT-5.4 and GPT-5.4 mini will no longer be available for users signed in with ChatGPT starting August 31.
The models will remain available on the OpenAI API and Codex sessions authenticated with an API key.