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Step-by-step guide 10 min read

Claude Duet explained: what it is, who it's for and how it compares

Anthropic's new agent that messages you first. Key features, what it won't do without you, and how it stacks up against Grok Bot, Muse and Dots.

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Claude Duet is a new standalone app from Anthropic where Claude works as a proactive personal agent. It watches your email, calendar and apps, comes to you with what needs attention, and gets work done in the background. It checks with you before it sends, pays, signs or deletes anything.

The short version: it's an AI assistant that messages you first and keeps working while you sleep. Think of it as a chief of staff in your pocket. Regular Claude waits for you to ask. Duet starts the conversation.

What is Claude Duet?

Regular Claude chatClaude Duet
Who starts the conversationYouDuet, as well as you
Where it runsWhile your chat is openOn its own cloud computer, even with the app closed
What you get backAnswers in chatFinished work: drafted replies, briefs, dashboards, decks
Risky actionsDoesn't take themShows you exactly what it will do and waits for your yes

It launched on 21 October 2026 as a research preview and runs on Claude Opus 5.5, which is what lets it judge what needs you, what can wait and when to check in first.

Who it's for

Anthropic built it for professionals and small business owners with more on their plate than they can keep track of. It's a good fit if you:

  • live in your inbox and calendar and lose hours triaging both
  • run a small business and wear the admin, finance and marketing hats yourself
  • already use Claude with connected apps like Gmail, Slack or Shopify

One example Anthropic shared: Amin owns Shahs of Kabob, with about 110 staff, and uses Duet for accounting, customer support and marketing, working through invoices store by store.

Who can get it right now

Status
CountryUS only. No date yet for anywhere else, including Australia
PlansPro and Max. Not Team or Enterprise yet
AccessWaitlist, opening in waves
CostNo extra fee. It uses your normal plan limits
WhereiOS, Android and claude.ai, as its own app separate from the main Claude app

How a day with Duet works

  1. Step 1

    Morning brief

    What matters today

  2. Step 2

    Check-ins

    Every few hours

  3. Step 3

    Spots a job

    Or you hand one off

  4. Step 4

    Works in the cloud

    App can be closed

Is it about to send, pay, sign or delete something?

Yes

Shows you exactly what it will do, then waits for your yes

No

Just does it and hands you the result

Duet does the reading, research and drafting on its own. The only time it stops for you is before something hard to undo.

Key features in plain English

FeatureWhat it means for youExample
Zero setupIt inherits the memory, skills and connected apps from your Claude account, and can search your past chatsPeter Yang didn't reconnect anything. Duet read his email and calendar and suggested work in its first message
It comes to youA short brief each morning, then check-ins every few hours. It only pings you when something needs youWithout being asked, it flagged a property viewing that was in someone's calendar on the wrong day
Runs in the cloudIt has its own virtual computer and browser, so your phone and laptop can be offJobs finish overnight and you get a notification
Real outputs, not just chatBigger jobs come back as files you can review and editMorning brief, email triage with drafted replies, a YouTube analytics report, a sponsor revenue dashboard
Learns how you writeA built-in skill reads your sent emails, Slack and docs, then builds a style guide for draftingPeter's ran on 33 emails, 89 Slack messages, 47 DMs and 11 docs
"/" skillsType / to see the built-in skillsMorning brief, learn how I write, Uber, DoorDash
Tasks, channels and groupsEach job gets its own thread, sorted into active, upcoming, scheduled and resolvedWorks a lot like Claude Projects
Scheduled tasksJobs that repeat daily or weeklyRefresh a dashboard every Monday and email it to you
6,000+ connectorsPlugs into the apps a business runs onGmail, Slack, HubSpot, Stripe, QuickBooks, Gusto, Docusign, Canva, Shopify
Text or voiceOne ongoing thread for everythingA quick question and a week-long project start in the same place

Shopping and payments

Duet can actually buy things for you. It finds the item, shows you what it's about to buy, and only checks out once you approve.

  1. You ask it to buy something.
  2. It finds the item and shows you the exact purchase.
  3. You approve the spend.
  4. It pays with a one-time card that only works for that purchase, so your real card number never sits with the agent.
WalletHow it pays
Shop Pay (Shopify)Checks out at online stores. Shopify says this is the first time Shop Pay works inside an agent at stores that aren't on Shopify
Link (Stripe)Link asks you to approve the spend, then pays with a virtual card

You connect both inside Duet itself, not in the normal connectors directory.

If you sell online, there's a second side to this. Duet can set up, design and manage a Shopify store, and Anthropic says a visual editor for designing and previewing your storefront before it goes live is coming soon.

What it won't do without you

Duet drafts and prepares freely, but it stops and asks before anything you can't easily undo.

LevelWhat happensExamples
Does it on its ownReads, researches, drafts, buildsTriage your inbox, write replies, build a dashboard, prep a call brief
Asks firstShows you exactly what it will do, then waitsSending a message, making a payment, signing a document, deleting anything
Never, even if you approveOff-limits during the previewTrading shares, moving money between accounts

It also never directly sees your passwords or sign-in tokens, and a new classifier guards against it sharing sensitive information.

Where it falls short

It's a research preview and Anthropic is upfront about that. These are the gaps the reviewers and Anthropic both point to:

  • You can't see or control its browser. Peter's Uber booking failed on a "verify you're human" check, and there was nowhere in the app to step in and clear it. He says the team is working on it.
  • Personal errands are weaker. Booking tickets and rides is less reliable than work tasks.
  • It can't see skills on your own computer, only the ones in your Claude account. There's no desktop app yet.
  • It can misjudge urgency or misread a thread, by Anthropic's own admission.
  • It uses your plan limits. Background checks count, even the ones you never see. That's why it checks every few hours instead of constantly.
  • Not for teams yet. No Team or Enterprise plans and no shared workspaces.

Is it really proactive? The two reviews disagree

ReviewerVerdictWhy
Peter Yang (YouTube)The most proactive agent he's triedA default check-in runs every 3 hours from 9am to 10pm and keeps surfacing work. He found five a day too many and asked for fewer
Claire Vo (Lenny's Newsletter)"Claude Duet is beautiful. I still forgot to use it"It didn't nudge her enough to become a habit, and slow responses made back-and-forth work tiring

Both agree it's one of the most polished agent launches so far, with careful onboarding, task lists and proper files instead of walls of chat.

Claude Duet vs Grok Bot vs Muse vs Dots

Each of these personal agents is best at one thing. Pick by the job you want done.

Claude DuetGrok Bot (xAI)Muse (Meta)Dots (OpenAI)
Best atComing to you first and turning your inbox and apps into finished workMarket research using XPhoning US businesses for youUsing everything ChatGPT already knows about you
PriceIncluded in Claude Pro and MaxPaidFreePart of ChatGPT
Standout featureMorning brief, check-ins, polished dashboards and briefsFree X integrationCalls a business to book a job or negotiate a billLives inside ChatGPT, with your chat memory and threads
Main weaknessNo browser view yet, can't add your own local skillsEmail didn't work well in testingNot on a frontier model, so more mistakesLaunched buggy and still feels slow
Pick it ifYou run on email and calendar and want a chief of staffYou research markets and trends on XYou want an agent that makes phone callsYou already live in ChatGPT

How to get access

  1. Join the waitlist at claude.com/product/claude-duet. It asks for your name, email, company, phone type and the first job you'd hand off.
  2. Use the email on your Claude account. Access is matched to it, or to the Google or Apple account on your phone.
  3. Wait for your invite. Access opens in waves to US Pro and Max users.
  4. Open the app. Your Claude memory, skills and connected apps are already there.
  5. Run "learn how I write" from the / menu so drafted emails sound like you.
  6. Hand off a first task in one short message, like "triage my inbox and draft replies".
  7. Tune the check-ins. Tell it what you want to hear about and how often, for example morning and mid-afternoon only.
  8. Connect Shop Pay or Link inside Duet if you want it to buy things for you.

Sources

Duet launched the day before I wrote this, so hands-on reviews are still thin. Anything not listed below comes from Anthropic's launch post and help docs.

ClaimSource
What it is, who it's for, access, approvals, hard limits, passwords, Shop Pay and Link, usage limits, the Jess, Mya and Amin examplesAnthropic's "Introducing Claude Duet" post and "Get started with Claude Duet" help page
Shop Pay at stores not on ShopifyShopify's announcement
Check-ins every 3 hours, "/" skills, tasks and channels, the dashboards, the Uber failure, the four-way comparisonPeter Yang's hands-on YouTube review
"Beautiful, but I forgot to use it", slow responses, no desktop or team supportClaire Vo's review on Lenny's Newsletter

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