# OpenAI API Models gpt-5.1-codex-mini — lifecycle date releaseDate is now 2025-11-13

For OpenAI API Models gpt-5.1-codex-mini, product is openai-api-models; field changed is releaseDate; new value is 2025-11-13; detected is 2026-09-08, verified against its source on 2026-09-08.

- **Product:** openai-api-models _(verified: appears in the quote below)_
- **Product label:** OpenAI API Models _(verified: appears in the quote below)_
- **Release cycle:** gpt-5.1-codex-mini _(verified: appears in the quote below)_
- **Field changed:** releaseDate _(verified: appears in the quote below)_
- **New value:** 2025-11-13 _(verified: appears in the quote below)_
- **Detected:** 2026-09-08 _(verified: appears in the quote below)_

## What the source says

> {"name":"gpt-5.1-codex-mini","codename":null,"label":"GPT-5.1-Codex Mini","releaseDate":"2025-11-13"

## Source

- https://endoflife.date/api/v1/products/openai-api-models

Last verified: 2026-09-08. Review by: 2026-09-22.
Part of [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/).