Claude Duet: what it is, how it works and who can use it
Anthropic’s proactive agent offers daily briefs and cloud tasks. An invitation-only preview for US Pro and Max users; access, limits and approvals.
Checked on 26 October 2026 against the linked official sources. Prices and access can change; evaluation results are attributed to the vendor.
Direct answer: Claude Duet is Anthropic’s proactive agent, powered by Claude Opus 5.5. Its research preview opened on 21 October 2026 to US Pro and Max subscribers through a waitlist. It sends a daily brief, monitors connected apps and is designed to ask before sending messages, paying, signing or deleting.
Duet is a standalone app on iOS, Android and claude.ai. It shares your Claude account and plan limits. Team and Enterprise are not included in this preview.
How Claude Duet works
Your Claude memory, skills and connected apps are available from the first message. You can type or speak a request. Duet works on its own cloud computer and browser, so work can continue after you close the app.
Each morning it sends a brief about important items in connected apps. During the day it checks at intervals and contacts you when something needs attention. Requests can range from scheduling a meeting to drafting a forecast, building a dashboard or prototyping a web app.
It is designed to show the proposed action and wait for approval before sending a message, making a payment, signing a document or deleting something. Some actions remain off limits even with permission, including trading securities and transferring money between accounts.
Connectors and preview limits
Anthropic advertises more than 6,000 connectors and plugins. Examples include Gmail, Slack, Google Calendar, Drive, QuickBooks, Stripe, HubSpot, Docusign, Canva and Shopify. The help article says Microsoft 365 is not available in Duet yet.
- It can misread a thread or misjudge urgency.
- Background checks and larger tasks consume your existing plan limits.
- You cannot watch or take over its cloud browser during this preview.
- It is intended for professional and small-business work; personal errands are not its main strength.
An approval step still needs a review: check the recipient, amount, document or proposed deletion before confirming.
Who it is for
Professionals and small-business owners who need help keeping track of work across several tools. A sensible first task is a draft you can inspect, such as a meeting brief or an unpaid-invoice reminder. Connect the accounts required for that task and review the output before expanding the scope.
Frequently asked questions
What is Claude Duet? A proactive Anthropic agent powered by Opus 5.5 that sends briefs, monitors connected apps and completes assigned tasks.
Who can use it? US Pro and Max subscribers invited through the waitlist. Team and Enterprise are not included in the research preview.
Does it cost extra? The preview is included in Pro and Max at no additional charge. Its background activity and tasks count against the same plan limits.
Does it ask before acting? It is designed to request approval before messages, payments, signatures and deletions. Trading securities and moving money between accounts remain off limits.
Can it handle personal errands? It focuses on professional and small-business tasks. Personal errands are not its main strength during the preview.
Can I watch its browser? No. The research preview does not let you watch or take over its cloud browser.