← ChatGPT & Codex changelog
ChatGPT — January 29, 2026
v2026-01-29-71bd95ca includes 2 changes. Retiring GPT-4o and other legacy models
Source: official ChatGPT & Codex release notes. Summaries are written from the official notes; see how we work.
Changed
- Retiring GPT-4o and other legacy models
- On February 13, 2026, alongside the previously announced retirement of GPT‑5 (Instant and Thinking), we will retire GPT‑4o, GPT‑4.1, GPT‑4.1 mini, and OpenAI o4-mini from ChatGPT. In the API, there are no changes at this time. For more, see our blog post or help center.
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