GPT-5.2 and GPT-5.3-Codex have been sunset in Codex with ChatGPT subscriptions
OpenAI Developer Community
June 3, 2026
hmm interesting. Just different experiences we are both having then as I have not had the same as you have mentioned at all. So, just different experiences and cases of what is causing this I guess. since using 5.4 mini as my 5.3 repalcement and then doing all else with 5.5 i have not hit the 5 hour or weekly limit at all yet.
Discussion in the ATmosphere