Microsoft tightens Claude Fable access over data-retention worries
TL;DR
Microsoft is restricting internal use of Anthropic’s Claude Fable 5 for its employees while its legal team evaluatesAnthropic’s new data-retention requirements. Claude Fable 5 requires retaining prompts and outputs for up to 30 days (and potentially longer if flagged), raising concerns about customer data and confidentiality. Other Claude models remain available internally under Zero Data Retention, but Claude Fable isn’t in the internal model picker for Microsoft’s GitHub Copilot, highlighting ongoing compliance questions around internal use of the model.
- Microsoft restricts Claude Fable for employees over data retention concerns The Verge
- Claude Fable 5 and Claude Mythos 5 Anthropic
- Cybersecurity researchers aren’t happy about the guardrails on Anthropic’s Fable TechCrunch
- Anthropic releases Mythos-like AI model to the public two months after private rollout rocked Wall Street CNBC
- Claude Fable 5 available today in Microsoft Foundry: Powering the next era of autonomous agents Microsoft Azure
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