GPT-5.3-Codex and GPT-5.2 deprecated

GPT-5.3-Codex and GPT-5.2 are now deprecated as user-selectable models in Codex for users signed in with ChatGPT. API-key workflows aren’t affected.

Use a current Codex model, such as GPT-5.5, GPT-5.4, or GPT-5.4 mini. See Codex models for model availability and Codex pricing for credit rates.