Anthropic takes on Grok Bot, Meta's Muse, and OpenAI's Dots with its always-on agent "Claude Duet"

Anthropic launched a research preview of Claude Duet, a standalone proactive agent app for iOS, Android, and the web built on Claude Opus 5.5, available to US Pro and Max subscribers via a waitlist. Duet sends a morning summary from connected apps, works on its own cloud virtual machine, and connects to services like Gmail, Slack, Stripe, and Shopify through more than 6,000 connectors, but requires user approval before sending messages, making payments, signing documents, or deleting anything. Anthropic says the early version can misread threads, misjudge urgency, and miss items between checks, which run only every few hours and count against subscription limits.