- Microsoft and Anthropic unveil Copilot Cowork
- Anthropic AI platform allows Copilot to really dig deep into work tasks
- The tool will be able to cover the entire Microsoft 365 platform
Microsoft has announced that its Copilot Cowork platform will now be generally available to Microsoft 365 Copilot users worldwide.
First unveiled in March 2026, Cowork combines the power of Microsoft’s own Copilot offering with some of the most powerful AI tools from Anthropic’s Claude Cowork platform.
The aim, the companies say, is to transform AI assistants from an interested observer to a full-fledged helper, giving you all the tools you need to get work done intelligently.
Copilot Cowork
In a blog post announcing the news, Charles Lamanna, EVP, Copilot, Agents and Platform at Microsoft, noted “more than half of the Fortune 500 are using Copilot Cowork” after its initial preview.
“We’ve been blown away by your creativity and what you’ve all built with it,” Lamanna added, describing use cases ranging from batch editing spreadsheets, comparing thousands of files across two product versions, and evaluating risk opportunities for sales teams.
“Cowork is the fastest-growing feature in the history of our Frontier program, and Cowork has among the highest user satisfaction of any Copilot or agent experience we’ve shipped,” he said.
“We learned from what we saw, engaged along the way, and used everything we heard to improve quality and add new features, including model selection, extensibility through plugins, and new cost management controls.”
To mark its general release, Microsoft has added a few extra tools to Copilot Cowork as it looks to make the service as useful as possible.
First is a bigger choice in which AI model you use – in general availability, Copilot Cowork now runs on popular anthropic models, including Opus 4.8 and Sonnet 4.6.
In Frontier access, customers can also access GPT 5.5, with Cowork 1 coming soon, where Microsoft’s latest model removes model bias and helps deliver enterprise-grade performance at a significantly lower cost for everyday Copilot tasks, helping organizations manage cost-sensitive workloads.
Elsewhere, Microsoft is introducing new partner plugins for Copilot Cowork, with nine partners available immediately, including Monday.com, Miro and Moodys, with eight more on the way, including workplace heavyweights like Adobe, Atlassian, Box and Canva.
Frontier users can now use Copilot Cowork to come online through a local Edge browser, expanding the range of tasks they can perform on behalf of users.
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