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OpenAI Codex P0 · PACKAGING

OpenAI will retire GPT-5.4 and GPT-5.4 mini from Codex on August 31

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BEFORE CAPTURE
#29724 mcp: keep elicitation requests below app wire types @anp-oai
AFTER CAPTURE
2026-07-31 GPT-5.4 and GPT-5.4 mini retire from Codex on August 31 On August 31, 2026, GPT-5.4 and GPT-5.4 mini will no longer be available in Codex for users signed in with ChatGPT. GPT-5.4 and GPT-5.4 mini will remain available on the OpenAI API and Codex sessions authenticated with an API key. Switch to their recommended replacements: Replace gpt-5.4 with gpt-5.6-terra (GPT-5.6 Terra). Replace gpt-5.4-mini with…

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The before-and-after text above shows what was present on the official page at each capture. This summary explains the reviewed change.

VERIFIED CHANGE

OpenAI will retire GPT-5.4 and GPT-5.4 mini from Codex on August 31

GPT-5.4 and GPT-5.4 mini will leave Codex for ChatGPT-authenticated users on August 31, 2026. API-key Codex sessions and the OpenAI API remain unaffected; OpenAI recommends GPT-5.6 Terra and GPT-5.6 Luna.

Before captured
Jul 31, 2026, 10:03 AM PDT
After captured
Aug 1, 2026, 11:04 AM PDT
Reviewed
Aug 1, 2026, 11:05 AM PDT
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WHY IT MAY MATTER

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