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OpenAI Codex character

GPT-5.5, ChatGPT and OpenAI Codex

3 products from OpenAI

Retiring

GPT-5.5 to retire from ChatGPT, ChatGPT Work and Codex on October 14

OpenAI announced GPT-5.5 would retire from ChatGPT, ChatGPT Work and Codex on all plans on October 14, 2026. The API is not affected.

Who is affected:
ChatGPT and Codex users and admins who select GPT-5.5.
Action needed:
Update workspace defaults, saved settings, custom agents and scripts that select gpt-5.5.

Source

"On October 14, 2026, GPT-5.5 will retire from ChatGPT, ChatGPT Work, and Codex on all plans, including consumer, Business, Enterprise, and Edu plans."

Codex changelog

Published

Open the sourcedevelopers.openai.com

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