What Is Claude Duet? The AI That Comes to You First and Waits for Your OKTap through the morning brief, the approval gate and one-time card payments, then line it up against dots, Muse and Grok Bot

01The AI that speaks first: Claude Duet at a glance06:00

A conventional Q&A chat responds when asked. But regular Claude already lets you delegate and schedule work through Cowork. Since October 6, 2026, new Pro and Max Cowork tasks run in the cloud, and new scheduled tasks can run with no device online. Access to local files and apps still requires an open desktop app and other conditions.^[1] Duet’s distinction is not cloud execution alone: it is built around checking connected work and coming to you with briefs and approval requests. Anthropic describes it this way. It comes to you with what needs your attention, completes the tasks you ask of it, keeps working when you step away, and is designed to ask before consequential actions.^[2] That’s hard to picture, so compare a conventional Q&A workflow with Duet’s notification-led approach.

The difference is who speaks first. Duet is a standalone app for iOS and Android, and on a computer you open it at claude.ai.^[3] Anthropic says it built Duet for professionals and small business owners with more on their plates than they can track.^[2] The brain is Claude Opus 5.5, released on September 22, 2026.^[4] You can’t pick a model, and Duet decides how much effort each job needs.^[5]

Here is how Anthropic presents it in its demo. From the demo on Anthropic’s product page, we captured the morning screens of Maya, a fictional owner of several cafés. The lock screen says “Morning, Maya. 5 things in progress and 2 that need you.” The brief lays out hiring, a contract renewal, a new location, an investor meeting and customer complaints on one screen. The approval card for a $640 health permit fee even carries an “Expires in 8 min” tag.^[3]

02The morning brief: 3 lines out of 47 items06:30

Back to Red Bean’s bakery. While the first batch bakes, Red Bean spots a staff-chat note: only three days of packaging boxes remain. At 8:10, Duet also asks about reordering. Let’s follow that one job through the day. According to the help article, each morning Duet looks across your email and calendar, picks what most needs your attention, and can start the first steps, such as drafting replies for you to review. During the day it sends updates on its work and follows up on threads that have gone quiet.^[5] The heart of a brief is less about what goes in than about what stays out. Try making one.

The source line under each item isn’t decoration. Anthropic says that when Duet gives you a number or a summary, it tells you which email, file or spreadsheet it came from.^[5] If an AI can be wrong, you need a way to check.

The brief is built from apps you’ve already connected to Claude. Duet carries over the memory, skills and connected apps from your Claude account, reducing the background information you need to repeat.^[2] Anthropic says Duet can use more than 6,000 connectors and plugins in the Claude Marketplace, with examples like these: finding missed Gmail and Slack messages, checking QuickBooks or Stripe for unpaid invoices, preparing payroll in Gusto, posting a job on LinkedIn, sending agreements through Docusign, drafting follow-ups with HubSpot history, building a campaign in Canva and managing a Shopify store.^[2]

It also looks back through past chats. Duet searches your Duet chats and your Claude chats outside projects to pick up context. If you’d rather it didn’t, turn off Search and reference chats under Settings › Memory.^[5]

03Hand off a job with three tabs: Chat, Tasks, Make09:00

9 a.m. On the way out to make deliveries, Red Bean leaves a voice message: “List this month’s unpaid invoices and draft payment-check emails.” This is separate from the box order. The optional tool below compresses that invoice job’s full workflow into one example. The Duet app has three tabs: Chat, Tasks and Make.^[3] The main thread keeps going in one line, and if you start separate channels for different topics, they share the same memory. Tasks shows what Duet is working on and what needs your input, and results with more to review, such as reports or decks, land in Make.^[5]

One small rule stands out. Duet can suggest that a task looks finished, but only you can mark it complete. The quiet main thread is by design, too: Duet posts there only when a task is done or needs a decision from you.^[5]

Big jobs come back as files. Anthropic’s examples are a research brief, a financial model, a slide deck and a dashboard.^[5] The official demo shows a business dashboard called Marlo Pulse that refreshes at 5:30 every morning, an investor deck, and an email that stops right before sending. The 12-slide Series A deck even flags slides 6 and 9 as needing your eye, pointing a person to what to check first, much like the source lines in the brief.^[3]

04It keeps working after you put the phone down11:00

11 a.m. The lunch rush is coming, and the phone goes into an apron pocket. The work doesn’t stop. While Red Bean slices sandwich bread, Duet compares previous box orders and suppliers in the cloud. A cheaper seller can deliver only next week. Will three days of stock last? Duet runs on a virtual machine (a computer in the cloud) with its own browser, so it doesn’t need your laptop or phone to be on. Describe a task in a short message, and it works out which apps to use and what steps to take in the background, then notifies you when the task is done or needs your review.^[2] For sites without a connector, it uses that cloud browser directly.^[5]

One thing to keep in mind: Duet checks your connected accounts every few hours, not in real time, because checking nonstop would use up your plan’s limits much faster.^[2] Anthropic itself notes that something urgent can arrive between checks.^[5] You can tell it what you want to hear about and how often.^[2] And in the research preview, you can’t watch the browser Duet works in or take it over.^[5]

05Approving a payment with a one-time card13:30

After lunch, Red Bean checks the delivery date beneath the price and chooses the slightly pricier seller that delivers tomorrow. Duet prepares the revised order for approval. That is a fictional teaching example. Duet can purchase through a connected Link wallet from Stripe or through Shopify’s Shop Pay. After reviewing the purchase, you approve it separately in the chosen wallet. Link uses a Spend Request; Shop Pay uses its own purchase-review screen. Payment uses a one-time card rather than your original payment method’s full number.^[6][7] That card is one-time: it works only for that purchase, and a Link card is also locked to that store and amount.^[5][6] Follow it from approval to a used-up card.

06What it does alone, what it asks about, what it never does15:00

3 p.m. A reply to a supplier sits waiting as a draft. Duet reads, drafts and prepares work on its own. But before it sends a message, makes a payment, signs a document or deletes anything, it is designed to show you what it’s about to do and wait for approval. A few things are off-limits even with your approval, like trading securities or moving money between accounts.^[2] The help article adds accessing someone else’s account to that list.^[5] Get a feel for it with a sorting game.

Can’t approve right away? That’s fine. Duet finishes the rest of the task first and brings the approval back to you later.^[5] You can also disconnect any app at any time.^[2]

There are more layers behind the approve button. According to Anthropic, Duet’s actions also pass a check by the same auto mode classifier (a safety checker) that keeps Claude and Claude Code from taking steps you didn’t ask for. Its handling of credentials follows the design used for Claude Managed Agents, so it never directly sees your passwords or sign-in tokens. And Duet ships with a new dedicated classifier and safety system prompt for sensitive information.^[2] Try all three.

Anthropic is candid about hidden instructions. Emails and web pages can carry instructions meant to mislead an AI, which is called prompt injection. Duet is built to treat what it reads as information, but no defense is perfect, which is one reason consequential actions need your approval.^[5] Red teams (testers who try to break it) and an outside firm ran penetration tests (mock attacks) on Duet, it is covered by Anthropic’s public bug bounty, and Anthropic says it will share more about Duet’s safety design in the coming days. As of October 23, that follow-up hadn’t appeared yet.^[2]

There’s news on the password front too. For now, when a site asks for a password, you type it into a separate form on your device, and the form sends it straight to the browser, keeping it out of your chat with Duet.^[5] Anthropic also says that, with your permission, Duet will soon be able to sign in to sites with logins saved in 1Password.^[2] On Hacker News, one reader asked whether giving an LLM access to a password manager is “the mother of all bad ideas.” One reply said that, done right, the agent only asks for a password to be filled while the password manager handles the secret itself. Another reader described keeping a separate vault with only the secrets their coding agent needs.^[8]

07No extra charge, but usage still counts21:00

9 p.m. Red Bean opens Claude to polish a menu blurb and notices the usage display. There were few direct chats, but Duet checked emails, compared sellers and placed the approved box order. Time spent in a chat window is not the same as the amount of work an AI has done. During the research preview, Duet is included with Pro and Max at no extra cost. It uses your five-hour session and weekly limits at the same rate as chats, though, and background work such as the morning brief and check-ins counts too, so you may reach your limits sooner than with chat alone.^[5] Bigger jobs like a financial model or a deck take more model steps and background work.^[2]

Pro costs $20 a month ($17 a month billed annually). Max comes in two sizes: $100 a month for 5x Pro’s session usage and $200 a month for 20x. Prices are in US dollars.^[9][10] One consolation: when you’re admitted to Duet, you get a one-time reset of both five-hour and weekly limits. It is not applied automatically on admission: use it yourself in Settings > Usage when needed, until November 30, 2026.^[5][11] For how each plan’s limits have changed, see our AI usage limits and pricing tracker (in Korean).

08Four AIs that never clock out: what’s different?

Duet isn’t the first. Between August and October 2026, in about ten weeks, four always-on AI agents arrived. CNBC framed Duet as a likely challenger to OpenAI’s dots and Meta’s Muse.^[12] Google also reportedly launched “Gemini Agent” on October 8, but this article compares only the four whose features we could check in official docs.^[13]

To go deeper on each agent, read our Muse vs Grok Bot comparison, our OpenAI DevDay 2026 roundup where dots launched, and our look at the race to manage AI agents.

09Still a rehearsal: limits and first reactions

Anthropic calls Duet an early version. It might misread a thread or miscalibrate what’s urgent, and because it was built around work, personal errands such as booking tickets aren’t as strong yet. For now it lives in its own app, separate from the main Claude app, and what Anthropic learns from early users will shape how the two work together.^[2] Here are the limits from the help article in one place.^[5]

• 1You can’t watch its browser or take it over
• 2It checks at set intervals, so something urgent can land in between
• 3You can’t pick the model. Opus 5.5 also decides how much effort a job needs
• 4It doesn’t call or text other people. It can send email with your approval
• 5It can’t see your computer’s files or all your projects, and it can read your work in Claude but not change it
• 6Some connectors, such as Slack, have limits, and Microsoft 365 isn’t available yet
• 7Personal errands such as booking tickets aren’t as strong yet
• 8US Pro and Max only. Team and Enterprise later

When preparing to use it, open the checklist below.

At closing time, our fictional Red Bean checks the box order and tomorrow’s calendar. Duet gathered information and prepared comparisons; Red Bean chose the order based on its delivery date. The person reviews and approves, and Duet carries out the permitted action.

Convenience is not just the number of tasks completed. Did it pick what mattered, ask for approval at the right moment, and save more work than reviewing it took? Those are the three things I want to test when I can actually use it. Curious about the machinery agents run inside? Read our AI agent harness explainer. Want to start from the difference between automation and agents? Try how to hand busywork to an AI agent.

Six questions you might have after reading