- Microsoft and Anthropic reveal Copilot Cowork
- Anthropic AI platform gives Copilot the ability 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 revealed in March 2026, Cowork combines the power of Microsoft’s Copilot offering with some of the most powerful AI tools from Anthropic’s Claude Cowork platform.
The goal, the companies say, is to turn AI assistants from an interested observer into a total helper, giving you all the tools you need to get the job done intelligently.
Cowork copilot
In a blog post announcing the news, Charles Lamanna, executive vice president of Copilot, Agents and Platform at Microsoft, noted that “more than half of the Fortune 500 are using Copilot Cowork” following its initial soft launch.
“We’ve been impressed with their creativity and what they’ve created 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 some of the highest user satisfaction of any Copilot or agent experience we’ve ever offered,” he said.
“We learned from what we saw, interacted with you along the way, and used everything we heard to improve quality and add new features, including model choice, extensibility through plugins, and new cost management controls.”
To mark its general release, Microsoft has added some additional tools to Copilot Cowork with the intention of making the service as useful as possible.
First, there’s more choice in which AI model to 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, with Microsoft’s latest model removing model bias and helping to deliver enterprise-grade performance at substantially lower cost for daily Copilot tasks, helping organizations manage cost-sensitive workloads.
Separately, Microsoft is introducing new partner plugins for Copilot Cowork, with nine partners available immediately, including Monday.com, Miro, and Moodys, and eight more coming soon, including workplace heavyweights like Adobe, Atlassian, Box, and Canva.
Frontier users can now use Copilot Cowork to connect through a local Edge browser, expanding the range of tasks it can complete on behalf of users.
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