# OpenAI API Models gpt-6.1-sol — lifecycle date releaseDate is now 2026-09-29

For OpenAI API Models gpt-6.1-sol, product is openai-api-models; field changed is releaseDate; new value is 2026-09-29; 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-6.1-sol _(verified: appears in the quote below)_
- **Field changed:** releaseDate _(verified: appears in the quote below)_
- **New value:** 2026-09-29 _(verified: appears in the quote below)_
- **Detected:** 2026-10-05 _(our reading, not quoted from the source)_

## What the source says

> {"name":"gpt-6.1-sol","codename":null,"label":"GPT-6.1 Sol","releaseDate":"2026-09-29"

## 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/).