OpenAI GPT-5.5 will be offline on October 14: Cover ChatGPT and Codex, officially recommending to move to a new model

The news of September 16 is thatOpenAI Announced today,GPT-5.5 To be held on October 14, from ChatGPT, ChatGPT Work and Codex offline to cover all subscriptions。

OpenAI also reminds that users using GPT-5.5 in Codex should switch to GPT-5.6 Sol or GPT-6 Astra as soon as possible。

OpenAI states that this decommissioning includes all plans. For Codex users who still rely on GPT-55, the official alternative models given are GPT-5.6 Sol and GPT-6 Astra。

1AI previously reported that OpenAI announced the GPT-5.5 model on 24 April of this year, which reduces the consumption of word characters (token) when performing the same tasks。