Codex drops GPT-5.2-Codex, GPT-5.1-Codex models and GPT-5 for ChatGPT sign-in

From April 7 the Codex model picker stopped showing gpt-5.2-codex, gpt-5.1-codex-mini, gpt-5.1-codex-max, gpt-5.1-codex, gpt-5.1 and gpt-5, and they were removed for ChatGPT sign-in on April 14.

Who is affected:

Codex users signed in with ChatGPT who selected these models.

Action needed:

Switch to gpt-5.4 or another listed model, or use an API key.