What Is Claude Duet? Anthropic Wants AI to Notice What You Miss

An email changes the deadline. Your calendar still shows the old one. Somewhere in between sits the task you meant to deal with yesterday.

An AI that writes a good reply can help once you spot the problem. The more interesting assistant would notice that something needs attention in the first place.

That is the idea behind Claude Duet, a new app in the Claude family. Anthropic announced it on October 21 as a proactive assistant for professionals and small-business owners. It is designed to check connected services, prepare work and bring decisions back to you.

The preview is limited to invited US Pro and Max subscribers, and Choosely has not tested it. For eligible people already juggling work across connected apps, it is worth investigating. The appeal is less time spent chasing loose ends; the unresolved question is whether Duet reliably picks the right ones.

What Claude Duet is

Duet is a separate assistant app powered by Opus 5.5. You communicate by text or voice; it uses a cloud computer, so your own device can be switched off. Existing Claude memory, skills and connected apps carry over. It is offered on iOS, Android and the web through claude.ai. Anthropic's product FAQ describes morning briefs, delegated tasks and requests for your input.

Think of a useful assistant's brief: the few things that deserve attention, what has been prepared and which decisions remain yours. A list of every unread message would simply move the inbox into another app.

The distinction matters because the brief is an editorial act. Someone, or something, has decided what to leave out. For a professional juggling customers, appointments and paperwork, that selection could be the most valuable part. It could also be where a mistake becomes hardest to notice.

What Anthropic says it can do

Anthropic's launch account includes a small example with an obvious appeal. Brand strategist Mya Dalton reportedly received a brief for a prospective-client call; Duet also spotted that the call sat close to a flight and offered to move it. The example comes from an Anthropic-selected testimonial.

The attraction is the connection between two ordinary pieces of information. You might ask a chatbot to prepare for a meeting. You might separately check your travel plans. An assistant that notices the relationship could spare you the last-minute scramble.

For less dramatic administration, Anthropic lists invoice reminders, contract preparation and payroll review among Duet's intended jobs. The point is to hand back work a person can inspect and move forward.

Purchasing supplies provides a more concrete example. In the documented Link payment flow, you ask Duet to find an item, review its proposed purchase and approve a spend request in Link. Payment then uses a one-time card restricted to the merchant and amount. Link requires a US payment method and does not support recurring payments. A site can still block checkout, leaving you to finish it yourself.

There is a useful division of labor here. The assistant can handle the searching and preparation. You still need to check that it chose the right item, quantity and price. Finding a cheaper printer cartridge is not helpful if it fits someone else's printer.

Why proactive AI matters

Delegating a task usually requires you to recognize it, explain it and remember to follow up. That overhead can make a small job barely worth handing off.

Proactive assistance could reduce that overhead. A useful catch may never have appeared on your task list at all. In another Anthropic-selected account, broker Jess Provencher said Duet spotted a property showing scheduled for the wrong day without being asked.

But the assistant also chooses which possible problems deserve a place in the brief. A useful evaluation would examine what it left out as carefully as what it flagged. Did the missing item genuinely need no action, or did the system misunderstand it? A tidy summary cannot answer that question on its own.

There is a second trade-off: attention consumes allowance. Anthropic says Duet checks accounts every few hours because nonstop checking would exhaust limits faster. That leaves gaps in which an urgent message can arrive. Deadlines that require an immediate response need a faster alerting route.

Restraint matters too. Anthropic acknowledges that the preview can misjudge urgency. If every routine development becomes a notification, the user has gained another manager to report to. If too much stays quiet, the polished morning summary can create confidence that the underlying work has not earned.

How is this different from Claude or Cowork?

Claude already does more than answer one prompt at a time. Anthropic began merging Cowork and chat on September 16, describing work that continues after a laptop closes and reports that run on a schedule. Rollout and account differences still matter.

Duet packages an ongoing assistant relationship around your connected information: deciding which developments merit a check-in, as well as taking assignments. That emphasis goes beyond executing a predefined Monday report, which existing Claude capabilities may already cover. The distinction is how it selects work and involves you, not simply whether it can run while you are away.

Nor is Anthropic alone. ChatGPT Dots also work on cloud computers and can review connected information proactively. OpenAI's current guide describes a gradual rollout to eligible Pro accounts, Business Premium and admin-enabled Enterprise beta workspaces. Eligible Pro and Business Premium plans include a first dot and an allowance for deeper work.

They belong in the same category, with different permissions, limits and rollout. Our separate Dots, Grok Bot and Tasks in Gemini comparison covers those buying choices.

Who can try it, and what does it cost?

Join through the official Duet waitlist. Invitations arrive in waves with no guaranteed date; use your Claude account email when registering. The initial preview is for US Pro and Max users; Team and Enterprise are excluded. There is no confirmed expansion date in the checked documentation.

Duet has no additional preview fee, but its background work uses your existing Claude allowance. Claude's usage guidance distinguishes five-hour session limits and weekly limits, with consumption affected by workload. We cannot tell you how much a normal day of Duet will leave for your other work.

For reference, Pro costs US$20 monthly or US$200 annually. Max's web subscriptions cost US$100 or US$200 a month. Applicable taxes and mobile-store pricing can differ.

For an existing subscriber, the sensible question is what useful work fits inside the allowance already purchased. Buying a larger plan before receiving access would answer the spending question before the usefulness question.

Where you still need to pay attention

Microsoft 365 is unavailable in the preview according to the help guide, despite its logo appearing in the product page’s integration grid. Follow the specific restriction. Slack has limits, and you cannot watch or take over Duet’s browser. It cannot read files on your computer or see every project. Sending, paying, signing and deleting require approval by design; securities trading and account-to-account money transfers are forbidden even with approval.

Anthropic also describes credential isolation and filters for sensitive information. The help guide acknowledges that malicious instructions in emails or web pages can still pose a risk, which helps explain the approval gates.

The help guide also says disconnecting an app leaves earlier memories intact. Duet can also search past Claude chats outside projects; the control is Settings → Memory → Search and reference chats. Separately, Anthropic’s pricing table labels Pro and Max model training “Opt-out.” Check your model-improvement setting before adding work accounts. The general consumer training policy also covers feedback and safety review; the Duet guide supplies no separate training terms.

For work material, start with information you are entitled to share and outputs you can easily verify. Our guide to setting boundaries for always-on assistants develops that decision further.

Choosely's verdict

Claude Duet is worth watching because it tackles a familiar burden: keeping enough of the working day in your head to know where help is needed.

Existing US Pro or Max subscribers with compatible apps and a specific administrative problem are the clearest candidates for the waitlist. For the first job, choose a result you can compare directly with its source. Anthropic says Duet identifies the source behind a number or summary. Use those references to check an invoice reminder’s amount and recipient before approving delivery. People outside the preview, Microsoft 365-dependent users and anyone who needs dependable urgent monitoring should keep their current arrangements.

What would strengthen our assessment is ordinary evidence from repeated use: useful catches, manageable interruptions, correct drafts and enough allowance left for the rest of the day. The promise is fewer loose ends to chase. The test is whether checking Duet's work takes less effort than doing that chasing yourself.