Microsoft announced Copilot Cowork on Monday, a new feature that lets its AI assistant execute multi-step tasks across Outlook, Teams, Excel, and other Microsoft 365 apps. You describe an outcome, Cowork builds a plan, runs it in the background, and checks in at set intervals for approval. Calendar triage, competitive analysis decks, meeting prep: the pitch is delegation, not conversation.
The underlying technology comes from Anthropic. Microsoft says it "worked closely" with the company to bring Claude Cowork capabilities into its own product. That's the same Anthropic whose January launch of the original Claude Cowork helped trigger a roughly $220 billion drop in Microsoft's market cap, according to Fortune. Microsoft's response: if you can't beat the technology, license it and wrap it in enterprise compliance.
Charles Lamanna, Microsoft's president of business applications and agents, framed the product as filling a gap. He described Anthropic's standalone offering as having "limitations" in corporate environments, citing lack of access to cloud-based enterprise data. Copilot Cowork runs inside M365's security and governance boundaries, which is the selling point for IT departments that would never approve a desktop agent touching production files.
Cowork is in research preview now with a small group of customers. Broader access comes in late March through the Frontier program. It's also bundled into the new Microsoft 365 E7 tier launching May 1 at $99 per user per month, a 65% jump over E5 pricing.
Bottom Line
Microsoft is packaging Anthropic's Claude Cowork technology inside its own enterprise wrapper and charging $99/month for it as part of a new E7 licensing tier launching May 1.
Quick Facts
- Copilot Cowork announced March 9, 2026
- Built using Anthropic's Claude Cowork technology
- Microsoft 365 E7 tier: $99/user/month, launches May 1
- Copilot paid seats grew 160% year over year (company-reported)
- 90% of Fortune 500 now use Copilot (company-reported)
