Claude Duet: The AI That Works While You Sleep — Waitlist & Getting Started Guide

Imagine starting your workday not with 40 minutes of email, calendar and status updates, but with a short brief that an AI already prepared for you — and a draft reply waiting for your approval. That is exactly the problem Anthropic's Claude Duet is built for. On October 21, 2026 Anthropic opened a research-preview waitlist for Duet: a proactive AI agent that comes to you with what needs attention, finishes tasks you ask for, and keeps working even when you step away.

What Claude Duet actually does

• Sends you a morning brief of what needs your attention in email and calendar.
• Works through your inbox and drafts replies for you to approve — it checks with you before acting on your behalf.
• Turns scattered material into a brief, deck or dashboard.
• Runs on Claude Opus 5.5 inside its own virtual machine with a browser, so it keeps working while your device is off.

Who can use it right now

Duet is a research preview: waitlist-based, currently for Claude Pro and Max subscribers in the US only. Team and Enterprise plans are not included yet. There is no extra fee during the preview, but Duet's background work counts against the usage limits of your existing plan.

How to get on the waitlist, step by step

1. Have a Claude Pro or Max plan with a US-region account (claude.ai).
2. Open the official Claude Duet page (claude.com/product/claude-duet) and find the waitlist sign-up.
3. Submit the form and wait for the invitation email.
4. Once invited, enable Duet in Claude and follow the prompts to let it access the email and calendar you choose.
5. Start with something small — ask it for tomorrow's morning brief.

Things to know before you start

• Anthropic admits Duet can still misjudge what is urgent — you stay in control of anything it acts on.
• Privacy: Duet reads only the email and calendar data you authorize; be careful with sensitive material.
• Usage: background work consumes your existing plan's limits, so keep an eye on them if you use Claude heavily.

Bottom line

Claude Duet is the most concrete "AI that works while you sleep" product of late 2026 — and today it costs nothing extra for eligible subscribers. If you have Pro or Max and you're in the US, joining the waitlist takes five minutes and puts you ahead of most people.