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Anthropic model use in supported apps in Microsoft 365 Copilot: what does this AI read, and can you turn it off?

Checked on October 26, 2026 by verification chain vchain-1

This AI is on by default; it can be turned off.

The facts, edition by edition

All editions
What the AI doesWrite “This setting allows Microsoft Copilot in supported Microsoft 365 apps to use Anthropic models by default when generating or refining content.” [3] dated copy
ModelNot yet verified
What it readsDocuments “This setting allows Microsoft Copilot in supported Microsoft 365 apps to use Anthropic models by default when generating or refining content.” “Microsoft Copilot includes an admin setting that enables the use of Anthropic models in Copilot experiences across Word, Excel, and PowerPoint.” [3] dated copy
Where the data goesNot documented by the vendor “When Anthropic models are used in Copilot experiences in Word, Excel, or PowerPoint, data processing for these models occurs outside of the Microsoft EU Data Boundary (EUDB).” “data processing for these models occurs outside of the Microsoft EU Data Boundary (EUDB)” “Models provided by Anthropic as a subprocessor are currently excluded from the EU Data Boundary.” [3] dated copy
Trains on your dataNot yet verified
On by defaultYes “This setting is on by default for tenants in the EU, EFTA, and UK that were created after March 25, 2026.” [3] dated copy
Can be turned offYes “As the admin, you can manage the Anthropic model setting in the Microsoft 365 admin center.” “As an admin, you can decide whether to use these models to power your experiences, and additional terms may apply.” [3] dated copy
BillingNot yet verified
Feature typeNot yet verified
Frameworks the catalog links to itNot yet verified

All editions

What the AI does
Write “This setting allows Microsoft Copilot in supported Microsoft 365 apps to use Anthropic models by default when generating or refining content.” [3] dated copy
Model
Not yet verified
What it reads
Documents “This setting allows Microsoft Copilot in supported Microsoft 365 apps to use Anthropic models by default when generating or refining content.” “Microsoft Copilot includes an admin setting that enables the use of Anthropic models in Copilot experiences across Word, Excel, and PowerPoint.” [3] dated copy
Where the data goes
Not documented by the vendor “When Anthropic models are used in Copilot experiences in Word, Excel, or PowerPoint, data processing for these models occurs outside of the Microsoft EU Data Boundary (EUDB).” “data processing for these models occurs outside of the Microsoft EU Data Boundary (EUDB)” “Models provided by Anthropic as a subprocessor are currently excluded from the EU Data Boundary.” [3] dated copy
Trains on your data
Not yet verified
On by default
Yes “This setting is on by default for tenants in the EU, EFTA, and UK that were created after March 25, 2026.” [3] dated copy
Can be turned off
Yes “As the admin, you can manage the Anthropic model setting in the Microsoft 365 admin center.” “As an admin, you can decide whether to use these models to power your experiences, and additional terms may apply.” [3] dated copy
Billing
Not yet verified
Feature type
Not yet verified
Frameworks the catalog links to it
Not yet verified

To turn it off

  • All editions: Yes “As the admin, you can manage the Anthropic model setting in the Microsoft 365 admin center.” “As an admin, you can decide whether to use these models to power your experiences, and additional terms may apply.” [3] dated copy

Frameworks the catalog links to it

Linked frameworks will appear once the reference set is published.

  • All editions: Not yet verified

Sources

  1. Data, Privacy, and Security for Microsoft Copilot, Microsoft, October 22, 2026
  2. Microsoft 365 Roadmap, ID 558286, Microsoft, October 22, 2026
  3. Copilot in Microsoft 365 apps with Anthropic models, Microsoft, October 22, 2026

Change log

No change since first publication.

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