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OpenAI 宣布 GPT-5.5 将于 10 月 14 日下线：ChatGPT 与 Codex 同步移除
据 AIbase 报道，OpenAI 于 9 月 16 日宣布 GPT-5.5 将于 10 月 14 日从 ChatGPT、ChatGPT Work 和 Codex 中移除，覆盖所有订阅方案。官方提醒仍在使用 GPT-5.5 的 Codex 用户尽快迁移至 GPT-5.6 Sol 或 GPT-6 Astra。报道称 GPT-5.5 于今年 4 月 24 日发布，相比 GPT-5.4 可降低完成相同任务的 token 消耗。该消息尚未见官方公告原文佐证。
AI推荐理由 内容为 OpenAI 宣布 GPT-5.5 将于 10 月 14 日从 ChatGPT、ChatGPT Work 和 Codex 下线，并建议 Codex 用户迁移到 GPT-5.6 Sol 或 GPT-6 Astra，属于对开发者有实际影响的产品生命周期信息。但来源为 AIbase 转述，非 OpenAI 官方公告原文，且正文未提供官方链接或可验证证据，信息密度较低，故质量分中等。
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正文
OpenAI Announces GPT-5.5 Will Be Discontinued on October 14: ChatGPT and Codex Removed Simultaneously
AIbase基地
Published inAI News · 1 min read · Sep 16, 2026
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OpenAI announced on September 16 that GPT-5.5 will be removed from ChatGPT, ChatGPT Work, and Codex on October 14, covering all subscription plans.
OpenAI also reminded users of Codex who are using GPT-5.5 to switch to GPT-5.6 Sol or GPT-6 Astra as soon as possible. The official stated that the deactivation scope includes all plans; for Codex users still relying on GPT-5.5, the available alternative models are GPT-5.6 Sol and GPT-6 Astra.
According to previous reports, OpenAI announced the release of the GPT-5.5 model on April 24 this year, which can reduce token consumption when completing the same tasks compared to GPT-5.4.
GPT-5.5CodexGPT-5.6SolGPT-6Astra
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