# Anthropic Claude claude-fable-5-1 — lifecycle date eolFrom is now 2027-09-01

For Anthropic Claude claude-fable-5-1, product is claude; field changed is eolFrom; new value is 2027-09-01; detected is 2026-09-02, verified against its source on 2026-09-02.

- **Product:** claude _(verified: appears in the quote below)_
- **Product label:** Anthropic Claude _(verified: appears in the quote below)_
- **Release cycle:** claude-fable-5-1 _(verified: appears in the quote below)_
- **Field changed:** eolFrom _(verified: appears in the quote below)_
- **New value:** 2027-09-01 _(verified: appears in the quote below)_
- **Detected:** 2026-09-02 _(verified: appears in the quote below)_

## What the source says

> {"name":"claude-fable-5-1","codename":null,"label":"Claude Fable 5.1","releaseDate":"2026-09-01","isLts":false,"ltsFrom":null,"isEoas":false,"eoasFrom":null,"isEol":false,"eolFrom":"2027-09-01"

## Source

- https://endoflife.date/api/v1/products/claude

Last verified: 2026-09-02. Review by: 2026-09-16.
Part of [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/).