Anthropic launches Claude Duet, a proactive AI agent for Pro and Max users
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The gist
Anthropic launched Claude Duet, a proactive AI agent, as a US-only research preview for Pro and Max subscribers.
It joins Meta's Muse and OpenAI's dots in the race to build always-on assistants.
Background
Anthropic is the artificial intelligence company behind the Claude chatbot. Claude Duet is its "proactive agent" for professionals and small business owners, built on Opus 5.5 and launched as a research preview. It arrives in a fast-growing field of AI assistants that act on their own, competing with OpenAI's dots, Meta's Muse, Google's Gemini Spark and agents from start-up Instinct. Meta's Muse launched last month and topped Apple's App Store, and OpenAI introduced dots weeks later, so Anthropic is entering a crowded market.
How it unfolded
- Oct 21, 2026Anthropic announced Claude Duet, a proactive agent for individuals, available as a research preview on Android, iPhone and the web with a waitlist for Claude Pro and Max subscribers.
- Oct 21, 2026Anthropic said invitations will go out in waves, that Duet isn't available on Team or Enterprise plans yet, and that it is limited to Pro and Max subscribers in the United States, leaving Europe out for now.
- Oct 21, 2026Anthropic said Duet is included at no additional cost but counts toward existing plan usage limits, including background work, which could cause users to reach those limits sooner than with chat alone.
- Oct 21, 2026Meta reported third-quarter earnings, with CEO Mark Zuckerberg telling analysts more than 10 million people in the U.S. and Canada have set up Muse personal agents over the past month and a half.
Who’s saying what
- Official
- Anthropic says Duet is designed to be "a partner you can trust" that sends a morning brief, watches connected apps and checks with the user before acting on their behalf.
- Caution
- Anthropic acknowledges Duet is early and "might misread a thread or miscalibrate what's urgent," and that personal errands like booking tickets are not quite as strong as workplace tasks.
- Analysts
- Thurrott.com writer Paul Thurrott said the timing suggests Anthropic was caught a bit flat-footed by its competitors in this case.
Still unverified
The project was reportedly called Claude Loop internally, according to Trending Topics.