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GPT-5.4 and GPT-5.4 mini Retired from ChatGPT | OpenAI | Chasing Next

OpenAImodel

July 31, 2026·Source

GPT-5.4 and GPT-5.4 mini Retired from ChatGPT

Both models stop working for anyone signed in with a ChatGPT account on August 31, 2026. They stay available through the API.

Details

GPT-5.4 and GPT-5.4 mini stop being available to users signed in with ChatGPT on August 31, 2026
Both models stay on the OpenAI API
Codex sessions authenticated with an API key keep access, sessions authenticated through ChatGPT lose it

Best for

Auditing where you still call GPT-5.4 before the date passes.

When to use it

Saved prompts, custom GPTs, or Codex sessions are pinned to GPT-5.4 and need repointing.

Who benefits

ChatGPT and Codex users with anything hardcoded to the 5.4 family.

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