Anthropic introduced Claude Duet on October 21, 2026, a proactive AI agent powered by Claude Opus 5.5 and designed to act as a personal assistant or chief of staff. It monitors tools such as email and calendars, then can handle tasks including scheduling and invoicing while continuing to work in the background. The agent requests human approval before consequential actions, particularly those involving financial or legal matters. Access is currently limited to a waitlist for Claude Pro and Max subscribers in the United States, and its background activity counts against subscribers’ usage limits.
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