A regular chatbot stays silent until you write to it, but Claude Duet, which Anthropic unveiled on October 21, 2026, works the other way around: it watches your inbox, calendar and work apps on its own and messages you when a decision is needed. OpenAI showed a similar product, Dots, three weeks earlier, and Duet looks like the answer to it. For now it is a research preview for Pro and Max subscribers in the US, with access through a waitlist.
What Claude Duet is
Duet is a standalone app for iOS and Android; on a computer it opens in claude.ai. Under the hood is Claude Opus 5.5 and one long conversation thread where you can type or talk. No projects, prompts or setup to start with.
The day begins with a short morning brief: what matters in your inbox, your calendar and your connected apps. After that Duet stays quiet and checks your accounts every few hours. If something needs attention, it sends a message. You decide what counts as important and how often it can ping you.
The agent runs tasks on its own cloud computer with a separate browser. You can shut your laptop and phone down - the work keeps going. Finished documents, spreadsheets, decks and dashboards land in a separate tab.
What Duet does on its own and what waits for your "yes"
The core idea of the product is to split actions into safe and irreversible ones. Reading, searching and drafting happen without asking. Anything that leaves your account or costs money is shown to you first and waits for approval.
| Action | What Duet does |
|---|---|
| Read email, calendar, Slack, find unpaid invoices | on its own |
| Draft a reply, a payment reminder, a deck, a financial model | on its own, result goes to you for review |
| Send an email or a message | shows the exact text and waits for approval |
| Pay for a purchase (via Stripe's Link or Shop Pay) | only after approval |
| Sign a document, delete anything | only after approval |
| Trade securities, move money between accounts | not allowed even with approval |
You can connect more than 6,000 connectors and plugins from the Claude Marketplace: Gmail, Google Calendar, Slack, QuickBooks, Stripe, HubSpot, DocuSign, Notion, Shopify, Canva and more. Duet takes memory, skills and connected apps from your Claude account, so there is no need to introduce yourself again.
Who it is for
Anthropic names the audience directly: professionals and small business owners. The examples on the product page match - find unpaid invoices and draft reminders, prepare payroll for review, get a contract ready to sign, catch 27 wrong orders that piled up over the weekend.
The announcement includes feedback from testers. A real estate broker says Duet caught a showing booked on the wrong day in her calendar. A brand strategist says the agent noticed a client call right before her flight and offered to move it. That is exactly the scenario the product was built for: not "do what I asked" but "I noticed what you missed".
Security and honest limitations
An agent with access to your email and payment services is a large surface for mistakes, and Anthropic covers this in detail:
- Duet never sees passwords or sign-in tokens directly - access works the same way as in Claude Managed Agents;
- actions are checked by the auto mode classifier, and protection against hidden instructions on web pages (prompt injection) builds on Anthropic's research into agents working in a browser;
- the agent rejects card numbers and government ID, and passes on health and personal finance data only when you explicitly ask it to;
- the product was penetration-tested by an outside firm and is covered by a public bug bounty program.
Anthropic lists the limitations itself: Duet may misread a thread, misjudge urgency and miss something that arrives between check-ins. Personal errands like booking tickets work worse than work tasks for now, and the agent cannot show you its browser yet.
Price and availability
There is no separate fee for Duet - it is part of the subscription. But it uses your shared Claude limits, background checks count too, and big tasks like a financial model burn through the limit much faster than a regular chat.
| Plan | Price | Duet |
|---|---|---|
| Pro | $20 per month | yes, via waitlist |
| Max 5x | $100 per month | yes, via waitlist |
| Max 20x | $200 per month | yes, via waitlist |
| Team, Enterprise | - | not yet, promised later |
It works in the US only. Anthropic gives no dates for other countries or business plans.
Duet vs Dots and Muse
Anthropic does not mention competitors in the announcement, but Duet looks like an answer to them: on September 8 a similar consumer agent, Muse, came out; on September 29 OpenAI showed Dots, always-on agents in ChatGPT; three weeks later Anthropic released its own take. 9to5Mac put it that way in its headline: Anthropic takes on ChatGPT Dots and Muse.
Duet and Dots share the same idea - an agent with its own cloud computer that goes through your connected apps and comes back with a ready draft. Where they differ is who can use them and on what terms.
| Claude Duet | ChatGPT Dots | |
|---|---|---|
| Model | Claude Opus 5.5 | GPT-6 Astra |
| Integrations | 6,000+ connectors and plugins | 4,000+ apps |
| Plans | Pro ($20) and Max | Pro and Business Premium, beta for Enterprise |
| Availability | US only, waitlist | countries where the plan is offered |
| Limits | shared Claude limits, background checks count | chatting with the agent is free of limits, tasks in Codex and ChatGPT Work count |
The most visible difference is the entry price. OpenAI kept Dots for its top plans, while Duet is available from the $20 subscription, which puts Anthropic closer to the mass-market Muse than to the work-focused Dots. On geography, though, Dots is ahead: Duet only works in the US for now.
How the internet reacted
On Reddit, Duet was discussed without much excitement but to the point. Here are the main themes.
An answer to Dots and Muse. Users immediately put Duet in the same row as similar assistants from competitors: ChatGPT Dots, Muse and Grok Bot from xAI. The author of the most visible post called it exactly that - Anthropic's answer to "the Muses, Bots and Dots".
Is it new or not. Users are trying to decide whether Duet counts as something new. Some say there is no new functionality here: they built the same thing long ago from scheduled Claude runs, Claude Code and their own task system, and Duet just saves you the hassle of skills, md files and memory tweaks. Others reply that this is the whole point: good packaging turns an agent into a product for ordinary office workers, not only programmers. Besides, a homemade agent needs a laptop running 24/7 or a server of your own, and the average user has neither.
Where "useful" turns into "annoying". Proactivity cuts both ways: an agent that writes too often gets irritating faster than it helps. Commenters hope notifications can be limited per app. One person who tested Muse complains that the assistant kept asking for payment details and hopes Duet will be less pushy.
The risk of keeping everything with one vendor. One user said they used Claude as a personal agent until their account was suspended along with all their data. Another is wary of getting tied to Duet because their current setup moves easily between providers.
"US only". The most common short reply in both threads. Users from Europe and other countries ask when the international launch will happen - there is no answer yet.
What to think about
What interests me here is not the novelty of the technology - Reddit is right, all of this could be assembled before. What interests me is where Anthropic drew the line of responsibility: the agent reads and prepares on its own, and everything irreversible - sending, paying, signing - hits your "yes". That is exactly the line worth demanding from any assistant you hand your inbox to.
The catch, as I see it, is the limits. An agent that checks your services every few hours spends your subscription even when you have not asked it for anything. How far a $20 Pro plan stretches with active use will only become clear from the first users' reviews.
How to try something similar today
Duet itself is behind a waitlist and only available in the US. But the model it runs on - Claude Opus 5.5 - is already in GPTunneL: no subscription, local payment methods, you pay only for what you use.
You can put together a morning brief by hand: paste the list of incoming emails and today's meetings into the chat and ask Opus 5.5 to pick the three things that cannot wait and draft replies. If you want automation, start with our explainer on what AI agents are and the guide on how to build an AI agent for your own tasks.
Sources
- Claude Duet announcement, Anthropic, 21.10.2026 - features, security, limitations, tester feedback.
- Claude Duet, Anthropic - product page and waitlist.
- What is the Max plan?, Anthropic - Max plan prices.