Microsoft Tightens Access to Anthropic’s Claude Fable 5 as Data Rules Reviewed

Microsoft is restricting internal access to Anthropic’s Claude Fable 5 while legal and compliance teams review its revised data retention rules. The concern centers on Anthropic’s policy of retaining prompts and responses for 30 days and archiving flagged content for up to two years, raising questions about exposure of confidential data and whether the model meets Microsoft’s internal standards.