Microsoft 365 Copilot will add Anthropic AI models as an option for Word document editing, available worldwide by late May 2026. Enabled by default outside the EU, EFTA, and UK, and disabled by default within these regions, admins can control this setting while existing security and compliance standards remain.
Applies to: Microsoft 365 apps
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).