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OpenAI accidentally exposed unreleased GPT-5.5 and secret internal models in Codex—caught on video before the fix

OpenAI accidentally exposed unreleased GPT-5.5 and secret internal models in Codex—caught on video before the fix

OpenAI 的 Codex 大洩密!GPT-5.5、Arcanine 等未發佈模型被錄下來了

Someone discovered a massive leak in OpenAI's Codex today: the dropdown menu was showing unreleased models like GPT-5.5, oai-2.1, Arcanine, and Glacier-alpha before OpenAI patched it out. Looks like they accidentally pushed their internal staging environment to production. The video shows tooltips revealing these are "frontier agentic coding models"—basically the next-gen AI tools OpenAI has been working on behind the scenes. This is the kind of slip-up that usually gets caught immediately, but someone was fast enough to record it. Wild timing for anyone wondering what OpenAI's roadmap actually looks like.