Claude Duet: the AI assistant that messages you first

From asking questions to noticing tasks

Usually, you open an AI chat and ask a question. Claude Duet aims to reverse that pattern: it checks connected applications and messages you when it thinks something needs your attention. Anthropic introduced it on October 21, 2026, primarily for professionals and small businesses. [1]

One example in Anthropic's announcement involves an early tester whose client call was scheduled shortly before a flight. Duet noticed the timing and offered to move the call. This is an example published by the provider, not a test we reproduced. But it illustrates the idea: an AI that spots a connection you have not yet thought to ask about. [1]

What it is meant to do in the background

Anthropic says Duet compiles a morning brief from connected accounts, prepares next steps and checks again during the day for developments. You can also hand it specific work, such as preparing for a meeting, finding unpaid invoices or creating a report. It works on its own computer in the cloud, even when your laptop is switched off. [1, 2]

It carries over settings such as memory, skills and connected applications from your Claude account. You initiate additional connections yourself. The help page says you can disconnect an app at any time; that ends further access, but does not automatically remove memories of information from earlier conversations. [2]

What still needs your decision

According to Anthropic, Duet is designed to show its intended action and wait for approval before sending a message, making a purchase, signing a document or deleting anything. Some actions remain off-limits even with approval, including trading securities and moving money between accounts. [1, 2]

Those safeguards do not guarantee perfect decisions. The help page explicitly warns that emails and web pages may contain hidden instructions intended to mislead the agent. Reviewing drafts and reading approval requests carefully therefore remain part of the job. [2]

Access, cost and limits

As of October 22, 2026, Duet is an early research preview. Access requires a Pro or Max plan, a Claude account in the US and a waitlist invitation. Team and Enterprise plans are not included yet. This launch does not announce access for Germany or the rest of the EU; an ordinary Claude subscription is not enough. [2, 3]

Anthropic says there is no extra Duet charge during the preview. However, its work counts against the same usage limits as the rest of your plan, including background checks. Duet is offered as a separate iOS and Android app and on the web. Joining the waitlist does not guarantee a date for access. [1, 2]

It checks accounts at intervals rather than continuously in real time. It may misjudge urgency or misunderstand a message. You cannot currently watch or take over its cloud browser. Microsoft 365 is still listed as unavailable in the help page; Anthropic describes personal errands such as ticket booking as less mature than work tasks. [1, 2]

Why the development matters

Our view: the potential benefit is spending less time looking for unfinished work yourself. But that requires more trust than a single chat answer. An assistant needs access to working context and has to judge when to interrupt and when to stay quiet. A convincing demonstration does not establish how reliably it will do that over weeks.

For readers in Germany, Duet is therefore a development to watch for now. The useful questions are whether access expands, which applications actually work, and whether proactive help saves more attention than checking its results consumes. This article is based on published provider information, not our own use of Duet.