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GPT-5.4 and GPT-5.4 mini deprecation in ChatGPT | VibeLeaderboard

Intel / article

GPT-5.4 and GPT-5.4 mini deprecation in ChatGPT

Source: OpenAIDevs
Author: OpenAIDevs
Date: Published Jul 31, 2026

Why it matters

If you're using GPT-5.4 or GPT-5.4 mini inside ChatGPT, you need to migrate that usage to the API (or an API-key-authenticated Codex session) before August 31 or lose access to those models in the ChatGPT UI.

Read the source ↗learn.chatgpt.com

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