Anthropic's Claude Duet: a proactive agent that keeps working after you close the app

edwinarbus · x · 2026-10-24

Karan Ahuja shared details on Claude Duet, Anthropic's proactive agent now in research preview, as demand floods the waitlist. Key points:

Availability: US Pro/Max subscribers for now, on iOS, Android, and web; Mac app in the works.
How it works: Runs on a cloud-based computer, connects to your authorized apps, and keeps working after you close the app — reading your inbox, drafting replies, booking things, and running routines. The team uses it daily for their own work.
Safety design: Three layers — model-level safety training, product safeguards from Claude Code/Managed Agents, plus new protections for cross-account actions; a classifier reviews outgoing drafts; users stay in control; Duet never sees passwords, cookies, or credentials.
Use cases: Starting with work — professionals, small business owners, founders — before expanding to life use cases.

The screenshots show it tracking 12 months of invoicing, spotting a $500 shortfall, and drafting a reminder email pending user approval.

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