# Microsoft to enable Claude by default for UK Copilot customers

_Published Wednesday, November 11, 2026 at 3:36 PM EST · AI, Products · Latest · Tier 2 — Notable_

![Microsoft to enable Claude by default for UK Copilot customers — Primary](https://media.thenextweb.com/2026/11/microsoft-copilot-the-ai-built-for-work-home-code-autopilot.jpg)

Microsoft will enable Anthropic's Claude models by default for UK Copilot customers from 9 December, The Register reported. Organisations that leave the setting unchanged will be opted in; administrators can still disable it. Anthropic processes the data in the US.

The change covers Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps. Microsoft is also retiring a setting that restricted Claude to Microsoft 365 apps. Its documentation excludes Claude from in-country processing commitments.

Advanced models including Claude Fable 5 and Claude Mythos 5 will remain off by default and require separate administrator approval because Anthropic retains their data, mostly for up to 30 days.

## Sources

- [The Next Web](https://thenextweb.com/news/microsoft-claude-default-uk-copilot-9-december)

---
Canonical: https://techandbusiness.org/newswire/ge58B1Zla8c_m-WUHb_-_o
Published: 2026-11-11T20:36:00.138Z
Story chronology: 2026-11-11T18:47:04.000Z
Retrieved: 2026-11-12T01:10:18.445Z
Publisher: Tech & Business (techandbusiness.org)