Just wonder if this is expected? As I’ve been using 5.3 Codex even after 5.4 and 5.5 got released. I personally find it gives me the best outcome, for me even better experience than gpt 5.5. If expected, are we going to get any more codex models or going forward only generic gpt models only?

I just tried to use my API key and use 5.3 Codex and it gave me the exact same "model not available when logged in with ChatGPT…

This is infuriating. I’ve finally reached the point where I’m going to look at alternatives.

Following for updates, and pausing my subscription. I hope to see an announcement soon of a replacement coding model, GPT 5.3-Codex was great and superior to 5.5 for coding + cheaper.

Will we be getting a new codex modal? So far 5.4 and 5.5 burn though tokens and seem a bit dumb compared to codex. They derail and need more hand holding…

As a PRO user who just paid $100 for renewal (on the first of June) to use 5.3 Codex to have Codex pull the plug the next day, that’s thievery and completely dishonest. It’s worth a lawsuit for breach of contract! Even using Codex interface will not allow to use 5.3 codex forcing you to use more exp…

The best and most balanced model :frowning: Bring back gpt-5.3-codex!

OH HO HO… Guys guess WHAT?? If you switch to your API key, it automatically charges your account to give you more tokens without any notification. This is a god damn cash grab plain and simple. Plus switching to API doesn’t actually give you access to 5.3 codex again at all.

So now that they pulled the plug and intend a money grab (all codex renewals happened yesterday, and changing your API key might get your wallet thinner by the day) , what is the alternative to 5.3 codex if 5.5 is not gonna cut it and Claude is a waste of time (I tried it, its ridiculous)?

I hope you will loose a lot of paid users, I’m cancelling my sub right now. This is just corporate greed

This is honestly one of the worst decisions. I have been trying all morning to get simple tasks done and 5.5 is not understanding as much as 5.3 Codex…having generic models inside Codex really makes no sense. 5.3 needed 1 prompt, seems 5.5 needs 3-4 to get it done.

GPT-5.2 and GPT-5.3-Codex have been sunset in Codex with ChatGPT subscriptions

Codex

KenkoGeek June 2, 2026, 5:06pm 27

The best and most balanced model Bring back gpt-5.3-codex!

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GPT-5.2 and GPT-5.3-Codex have been sunset in Codex with ChatGPT subscriptions

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