# ChatGPT: GPT-5.5 Retires From ChatGPT and Codex on October 14 By Steven Van · 2026-09-15 OpenAI is retiring GPT-5.5 from ChatGPT, ChatGPT Work, and Codex on October 14, 2026, and recommends switching to GPT-5.6 Sol or GPT-6 Astra. OpenAI has announced that [ChatGPT]() will retire GPT-5.5 on October 14, 2026. The model is being removed from ChatGPT, ChatGPT Work, and Codex across all plans, and OpenAI is pointing Codex users toward GPT-5.6 Sol or GPT-6 Astra as replacements. The Codex changelog adds detail: the retirement covers consumer, Business, Enterprise, and Edu plans, but it does not apply to the OpenAI API. Anyone using Codex with ChatGPT sign-in should switch models before the retirement date and update any saved settings that still select gpt-5.5. - GPT-5.5 retires from ChatGPT, ChatGPT Work, and Codex on October 14, 2026. - The change applies to all plans, including consumer, Business, Enterprise, and Edu. - The retirement does not affect GPT-5.5 in the OpenAI API. - Codex users on GPT-5.5 should move to GPT-5.6 Sol (gpt-5.6-sol) or GPT-6 Astra. - Workspace defaults, saved model settings, managed configurations, custom agents, scheduled tasks, and scripts that select gpt-5.5 need updating. OpenAI shared the news in a short farewell post on X, with migration guidance in the Codex changelog: [announcement](). ![ChatGPT]() ChatGPT AI assistant by OpenAI — chat, write, code, analyse data, generate images, and browse the web, powered by the GPT-5.6 family. [View ChatGPT →]() Sources [Original source]() [Read ChatGPT: GPT-5.5 Retires From ChatGPT and Codex on October 14 on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/chatgpt-gpt-5-5-retires-from-chatgpt-and-codex-on-october-14