# OpenAI API Models gpt-5.1 — lifecycle date eolFrom is now 2027-04-01

For OpenAI API Models gpt-5.1, product is openai-api-models; field changed is eolFrom; new value is 2027-04-01; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.

- **Product:** openai-api-models
- **Product label:** OpenAI API Models
- **Release cycle:** gpt-5.1 _(verified: appears in the quote below)_
- **Field changed:** eolFrom _(verified: appears in the quote below)_
- **New value:** 2027-04-01 _(verified: appears in the quote below)_
- **Detected:** 2026-10-05 _(our reading, not quoted from the source)_

## What the source says

> {"name":"gpt-5.1","codename":null,"label":"GPT-5.1","releaseDate":"2025-11-12","isLts":false,"ltsFrom":null,"isEoas":true,"eoasFrom":"2026-10-01","isEol":false,"eolFrom":"2027-04-01"

## Source

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

Last verified: 2026-10-26. Review by: 2026-11-09.
Part of [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/).