# Anthropic Restores Fable 5 and Proposes a Cross-Lab Jailbreak Severity Scale

The framework, built with Amazon, Microsoft, and Google, scores jailbreaks on four axes and maps them to critical-to-low bands, arriving after a government-directed 19-day suspension.

- Published: 2026-07-18T06:03:03.819Z
- Canonical: https://polylog.news/ai/2026-07-18/anthropic-restores-fable-5-and-proposes-a-cross-lab-jailbrea
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Anthropic](https://www.anthropic.com/news/redeploying-fable-5), [Cyber Security News](https://cybersecuritynews.com/anthropic-claude-fable-5-cybersecurity/)

Anthropic has redeployed its Fable 5 model globally and proposed an industry framework for scoring the severity of jailbreaks, developed with Amazon, Microsoft, Google, and other partners in the Glasswing group. The redeployment followed a…

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