Claude Cowork FAQ

Cowork is Claude's agentic desktop feature that manipulates local files, creates documents, and organizes your workspace — without writing code. Think of it as Claude Code for knowledge workers: same AI model, different interface designed for non-developers.

Cowork cannot: execute code or scripts, make API calls, access cloud storage directly (Google Drive, Dropbox), process audio or video, decrypt encrypted files. Stick to file operations, document creation, and browser automation.

Chat (80%): reasoning, writing, coding, exploratory tasks. Cowork (20%): batch file operations, document creation, browser automation. Together they enable workflows impossible with either alone.

Claude Code: terminal interface, full shell access, for developers. Cowork: desktop app, file-only access, for knowledge workers. They share architecture but differ in capabilities — see our comparison table for details.

Cowork requires a Pro ($20/month) or Max ($100-200/month) subscription. Pro is recommended for light use only — quota exhausts in ~1-1.5 hours of intensive use. Max gives 5x-20x more capacity.

Usage resets every 5 hours (not daily or monthly). Pro tier: ~45 short messages per reset (~1-1.5h intensive use). Max tier: 5x-20x more. File processing consumes tokens rapidly — a single large PDF can cost 10+ messages.

Not yet (January 2026). macOS only. Windows is on Anthropic's roadmap but has no ETA. Linux has no official announcement. Use Claude Code for Linux agentic capabilities.

No. VPN software creates routing conflicts with Cowork's internal VM networking. This is the #1 reported issue. Disconnect VPN completely before using Cowork. Split-tunnel configurations may also cause problems.

There's no official security documentation yet (research preview). Best practices: use a dedicated workspace folder, review every execution plan before approving, keep credentials out of the workspace, verify file sources. Your files are sent to Anthropic servers for processing — treat the workspace accordingly.

Yes! Cowork can create Excel files with working formulas, multiple sheets, and formatting. Specify your regional setting (US comma , vs EU semicolon ;) in your prompt to avoid formula errors. See our prompt library for templates.

No, this is exploratory research. Cowork is brand new (launched January 2026). This guide reflects personal experimentation and current understanding — both will evolve rapidly. Not affiliated with Anthropic. For official information, visit anthropic.com.

Florian Bruniaux, a developer experimenting with Cowork since its recent launch. This is a living document — learning in real-time and documenting findings as they evolve. Feedback, corrections, and reality checks are essential!

Yes! The guide repository is open-source. Found an error? Have a better prompt? Contributions are welcome on GitHub.