GPT-5.2 and GPT-5.3-Codex have been sunset in Codex with ChatGPT subscriptions
OpenAI Developer Community
June 6, 2026
Would like to chime in as well. I just signed up paid, was thinking I get to use 5.5 for planning and 5.3 for execution. This is no longer the case.
I hope any product managers listening brings this back - or - at least give us a model that’s dedicated to coding and producing code.
And only code.
Discussion in the ATmosphere