Claude Cowork

Claude Cowork is Anthropic's answer to a simple question: what happens when you give the agent behind Claude Code to the people who never open a terminal? Instead of a chat window that hands back text you then have to act on, Cowork is given access to a folder and a set of connected tools, and works through the task itself — opening files, cross-referencing them, producing the deliverable, and showing its reasoning as it goes.

How it works

You state the goal, not the procedure. Cowork plans the steps, works on real files in place rather than through copy-and-paste, and streams a visible trace of every file it opened and every decision it made, so the output can be reviewed rather than merely trusted. Long jobs keep running after you close the lid, and independent tasks run in parallel, so a batch of documents is one instruction rather than a queue you babysit.

What people actually use it for

Anthropic reports that most Cowork usage comes from outside engineering — operations, marketing, finance, legal and research. The patterns the product is built around are recognisably that work: reconciling two spreadsheets and flagging the variances, reviewing a contract against a playbook, turning a folder of call notes into a pipeline summary, and standing up recurring reports on a daily, weekly or monthly cadence.

Extending it

Cowork takes plugins, including a set of open-source ones Anthropic ships for specific roles such as sales, legal and finance, so a team can encode its own conventions instead of restating them in every prompt. Connectors reach the tools the work already lives in — Slack, Google Drive, HubSpot, Microsoft 365 and more.

Availability

Cowork began as a research preview inside the Claude desktop app for macOS and has since expanded to Windows (x64 and arm64), Linux, ChromeOS, the web, and mobile in beta. It requires a paid Claude plan; free-tier accounts have to upgrade. Because it runs against your real files and connected accounts, the folder scope you grant is the security boundary worth thinking about before you point it at anything sensitive.