# GitHub — Claude Fable 5.1 is generally available in GitHub Copilot

- Company: GitHub (github.com)
- Announced: 2026-09-01T14:29:23+00:00
- Category: availability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://github.blog/changelog/2026-09-01-claude-fable-5-1-generally-available-in-github-copilot
- Record: https://forck.live/items/7295-claude-fable-5-1-is-generally-available-in-github-copilot
- Subject: Copilot
- Models affected: Claude Fable 5.1, Claude Fable 5
- Pricing: billed at provider list pricing under usage-based billing

Claude Fable 5.1 from Anthropic is now generally available in GitHub Copilot. It requires data retention by default for safety classifiers, with zero data retention available for eligible enterprise customers. The model is available to Copilot Pro+, Max, Business, and Enterprise users.

## Evidence

Verbatim from https://github.blog/changelog/2026-09-01-claude-fable-5-1-generally-available-in-github-copilot:

> Claude Fable 5.1 from Anthropic is now available in GitHub Copilot.

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Record: https://forck.live/items/7295-claude-fable-5-1-is-generally-available-in-github-copilot
Catalogue: https://forck.live/llms.txt
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