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

OpenAI Developer Community June 3, 2026
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Quick feedback: I agree with all the feedback shared here. I’ve been using codex 5.3 pretty much daily and thought it was impressive. It executed to perfection whatever it was asked to do. I tried 5.4 yesterday and couldn’t really produce what i wanted. A lot of back and forth with a disappointing result. I then tried codex 5.3 through the API and within 1h consumed almost 8 USD… so that’s really not viable for me. I’m afraid I’ll be signing up for something else and keep an eye just in case a different codex is brought back.

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