Claude Duet: the Claude app that doesn't wait for you to type
Claude Duet is Anthropic's app that builds a briefing every morning and works on its own. Preview for U.S. Pro and Max subscribers.
Claude Duet is the Claude app that doesn't wait for you to message it. Anthropic opened the preview of this proactive agent: it runs on Opus 5.5, builds you a briefing every morning, handles tasks in the background, and asks for your approval before sending messages or paying. For now it's a preview with a waitlist for Pro and Max subscribers in the United States.
What Claude Duet is
The idea is that of a good assistant: it speaks up before you ask. Instead of opening a chat and typing an instruction, Claude Duet takes the initiative and shows you what matters. It runs on Opus 5.5 and plugs into over 6,000 connectors and plugins, so it isn't just a conversation: it can reach the tools where you already work.

What it does on its own
- A briefing every morning. It builds a daily briefing without being asked.
- Background tasks. It books meetings and builds dashboards while you do something else.
- Permission before acting. It asks for your approval before sending a message or paying, so sensitive actions don't go out unseen.
- Over 6,000 connectors and plugins. It plugs into the apps you use every day.
The limits worth knowing
Claude Duet is a research preview, not a general release. Today there is a waitlist, and only for Pro and Max subscribers in the United States. It also uses your plan's usage limits: every check the agent makes burns from that allowance. And Anthropic acknowledges it can misjudge how urgent a message is, which is why human approval before sending or paying matters.

How to apply it in your business?
- Spot the repetitive work: checking the inbox every hour, booking meetings, building dashboards. These are the tasks a proactive agent can take off your plate.
- Delegate with approval. Use the fact that it asks before sending or paying: start with tasks where a mistake is cheap.
- Watch your limits. If you hand it everything, each check consumes your plan's usage; measure how much it uses before relying on it.
- Join the waitlist if your team has Pro or Max in the United States.
If you want to see another tool that works long without being watched, read the full breakdown of the Notion agent.
Frequently asked questions
What is Claude Duet?
A Claude app, currently in preview, that acts without waiting for you to message it: it builds a briefing every morning and handles background tasks.
Who can use Claude Duet?
For now there is a waitlist for Pro and Max subscribers in the United States.
Which model does it use?
It runs on Opus 5.5.
Does it send messages or pay without asking?
No. It asks for your approval before sending messages or paying.
How much does it cost to use?
It uses your plan's usage limits, so every check the agent makes draws from that allowance.
Conclusion
Claude Duet swaps the chat model for an assistant that gets ahead of you: a daily briefing, background tasks, and approval before acting. It's a preview with clear limits (waitlist, U.S. Pro and Max only, your plan's usage), so try it on low-risk tasks first. Source: Anthropic's official Claude Duet page, research preview.