# OpenAI API Models gpt-5.3-chat-latest — lifecycle date eoasFrom is now 2026-05-08

For OpenAI API Models gpt-5.3-chat-latest, product is openai-api-models; field changed is eoasFrom; new value is 2026-05-08; 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-5.3-chat-latest _(verified: appears in the quote below)_
- **Field changed:** eoasFrom _(verified: appears in the quote below)_
- **New value:** 2026-05-08 _(verified: appears in the quote below)_
- **Detected:** 2026-09-08 _(verified: appears in the quote below)_

## What the source says

> {"name":"gpt-5.3-chat-latest","codename":null,"label":"GPT-5.3 Chat","releaseDate":"2026-03-03","isLts":false,"ltsFrom":null,"isEoas":true,"eoasFrom":"2026-05-08"

## 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/).