Copilot Studio

Claude Sonnet is disabled in Copilot Agent

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Posted on by MG-15042110-0 Microsoft Employee

Hi,

Can anyone tell how to enable Clause Sonnet models in Copilot Agent?

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Copilot Studio pre-built agents/templates

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Bezanca 688 Super User 2026 Season 1 on at

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Hey @MG-15042110-0

These will need to be enabled by an admin of your tenant. Here are the instructions an admin can follow -

https://learn.microsoft.com/en-us/microsoft-365/copilot/connect-to-ai-models

Thanks

Adam

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Valantis 5,977 on at

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Hi @MG-15042110-0,

Anthropic models deployed in Microsoft offerings (including Microsoft 365 Copilot, Researcher, Copilot Studio, Power Platform, Agent Mode in Excel, and Word, Excel, and PowerPoint agents) are currently excluded from the EU Data Boundary, and when applicable, in-country processing commitments. Customers within the EU Data Boundary and customers in the UK will have Anthropic models disabled by default. Anthropic models aren't currently available for use in government clouds (GCC, GCC High, DoD) or sovereign clouds.

Best regards,

Valantis

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🏷️ For follow-ups @Valantis.

📝 https://valantisond365.com/

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11manish 2,625 on at

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To enable Claude 3.5 Sonnet (or later versions like Sonnet 4.5) in a Copilot Agent, you must first activate Anthropic as an AI provider in the Microsoft 365 Admin Center.

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Haque 3,362 on at

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Hi @MG-15042110-0,

First make sure what @Valantis mentioned. Then you can try the f ollowing:

To use Claude Sonnet in M365 apps (e.g., in the "Researcher" agent), the feature must be enabled by an administrator.

Let's make sure Admin Setup is done properly: An IT admin must allow access to Anthropic AI models in the Microsoft 365 Admin Center by navigating to Settings -> Copilot -> AI Providers.

User Activation:

Open the Microsoft 365 Copilot app.

Select the Researcher agent.

Within the chat session, select Claude as the model.

Note: The selection may reset to the default model once the session ends.

I am sure some clues I tried to give. If these clues help to resolve the issue brought you by here, please don't forget to check the box Does this answer your question? At the same time, I am pretty sure you have liked the response!

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Valantis 5,977 on at

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Hi @MG-15042110-0,

Just wanted to check in and see if everything is working now. If you still need any help, feel free to let me know.

Also, if the issue is resolved, it would be great if you could mark the answer as solved so others with the same question can find it easily.

Thanks and have a great day!

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