Most workplace AI stops too early. It writes the note, answers the question or summarises the file, then hands the rest back to the employee. Microsoft’s Copilot Cowork is built to keep going. Given a task such as preparing for a company meeting, it pulls context from emails, meetings, messages, files and company data. It then builds the briefing, creates the slide deck, schedules time to prepare and drafts the follow-up.
The company presents this as the step after chat and drafting. Cowork turns a request into a plan and keeps it moving in the background, inside Microsoft 365, the company’s suite of workplace apps. It checks in at clear points, so the employee can review progress, make changes or pause the work before anything is applied. The intended gain is less coordination work, fewer manual handoffs and a faster path from request to finished output.
Anthropic, maker of the Claude AI assistant, supplied the technology underneath. Microsoft says it brought what powers Claude Cowork, Anthropic’s own version, into Copilot, the AI assistant in its apps. It then wrapped that technology in its own security, identity and governance controls. That wrapping is what makes the launch important for enterprise buyers, because the issue is rarely whether an AI tool can create a document. The harder question is whether it can work within identity, permissions and compliance, the access and control rules companies already rely on. The company says many AI tools miss key business context, scatter too many copies of documents across too many places and sit outside existing confidentiality protections.
Copilot itself has drawn on more than one AI supplier since September 2025, when Microsoft began adding Anthropic’s models to it alongside the latest models from OpenAI. Bringing in the technology behind Claude Cowork takes that further, so different models can do the work while the employee stays in one working environment.
Cowork began as a research preview, tested with a limited set of customers. Wider access was planned for March 2026 through Frontier, the company’s early-access programme. Microsoft is also packaging Copilot with management and security tools in one offer that large organisations can buy and approve more easily. That offer, a plan called E7, is available from 1 May 2026 at $99 per user per month.
