OpenAI Developers @OpenAIDevs

GPT-5.5 will remain available via the OpenAI API Platform and in Codex sessions authenticated with an API key: [引用 @ChatGPT]: On October 14, it's time to say farewell to GPT-5.5 in ChatGPT, ChatGPT Work, and Codex across all plans. If you use GPT-5.5 in Codex, switch to GPT-5.6 Sol or GPT-6 Astra. Thanks for everything, 5.5 🫡