OpenAI Removing GPT-5.4 Models from ChatGPT Starting August 31
OpenAIDevs · x · 2026-08-01
OpenAI announced that GPT-5.4 and GPT-5.4 mini will no longer be available for users signed in with ChatGPT starting August 31. However, the models will remain accessible via the OpenAI API and Codex sessions authenticated with an API key.
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