Claude Duet: features, pricing and early reviews

Anthropic opened a research preview of Claude Duet on October 21, 2026 — a proactive agent on Claude Opus 5.5 with its own cloud VM and browser. Access is waitlist-only for Pro ($20/month) and Max (from $100/month) subscribers with a US account, and background work draws on the same plan limits as regular chats.

• Waitlist-only for Pro and Max subscribers with a US Claude account
• Runs on Claude Opus 5.5 with no model selection
• Background check-ins consume the same plan limits as chats
• Supports 6,000+ connectors and plugins from the Claude Marketplace