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- Microsoft and Anthropic reveal Copilot Cowork
- Anthropic AI platform gives Copilot the ability to really dig deep into work tasks
- Tool will be able to cover the entire Microsoft 365 platform
Microsoft has announced 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 own Copilot offering with some of the most powerful AI tools from Anthropic's Claude Cowork platform.
The aim, the companies say, is to turn AI assistants from an interested observer into a full-on 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 is using Copilot Cowork" following its initial preview launch.
"We have been impressed by your creativity and what you have all built with it," Lamanna added, describing use cases ranging from batch-editing spreadsheets, comparing thousands of files across two product versions, and evaluating at-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 have shipped," he said.
"We learned from what we saw, engaged 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 a few extra tools to Copilot Cowork as it looks to make the service as useful as possible.
First is a greater choice in which AI model you utilize - at 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 a substantially 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 the likes of Monday.com, Miro and Moodys, with eight more coming soon, including workplace heavyweights such as Adobe, Atlassian, Box and Canva.
Frontier users can now use Copilot Cowork to get online via a local Edge browser, expanding the range of tasks it can complete on behalf of users.
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