On Oct. 21, 2026, Anthropic opened a waitlisted research preview of Claude Duet, a proactive agent for professionals and small businesses, for Pro and Max subscribers in the United States. Anthropic said Duet runs on Claude Opus 5.5, works in a cloud virtual machine, and asks before it sends a message, makes a payment, signs a document, or deletes anything. It is available as an iOS and Android app and on claude.ai, and Anthropic said the early version can misread urgency.
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