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Anthropic · Released, not on our provider
Claude Duet (2026): Anthropic’s proactive agent app, and the Claude you can use now
Claude Duet is Anthropic’s proactive agent app, opened as a research preview on October 21, 2026: it runs on Claude Opus 5.5 ($4 / $20 per million tokens through the API), is included with US Pro, Max and Ultra plans by waitlist only, and is not on OpenRouter, so this site offers Claude Opus 5.5 itself in the chat instead.
- Maker
- Anthropic
- Type
- Text
- Released
- 2026-10-21
- OpenRouter id
- None
Checked
Claude Duet: facts, with sources
- Anthropic opened a research preview of Claude Duet on October 21, 2026: “a new app where Claude works as a proactive agent.”Source: claude.com · checked 2026-11-14
- Claude Duet runs on Claude Opus 5.5 and decides how much effort a job needs; you cannot choose a model.Source: support.claude.com · checked 2026-11-14
- Waitlist only, for Pro, Max and Ultra plans with a Claude account in the US; US only during the research preview, not yet on Team or Enterprise plans, and invitations go out in waves.Source: support.claude.com · checked 2026-11-14
- During the research preview it is included with Pro, Max and Ultra plans at no extra cost and uses the plan’s usage limits, including its background work.Source: support.claude.com · checked 2026-11-14
- A standalone app on iOS and Android, and on claude.ai.Source: claude.com · checked 2026-11-14
- It works with the connectors you have connected in Claude, such as Gmail, Google Calendar, Google Drive, Slack, QuickBooks, HubSpot, Docusign and Calendly; you start every connection yourself.Source: support.claude.com · checked 2026-11-14
- It is designed to ask before it sends a message, makes a payment, signs a document or deletes anything; some actions, such as trading securities or moving money between accounts, are off-limits even with approval.Source: support.claude.com · checked 2026-11-14
- Anthropic’s stated limits: it can misread a thread or misjudge what is urgent, it checks your accounts at set intervals, and it does not make phone calls or send text messages.Source: support.claude.com · checked 2026-11-14
- Claude Duet is an app, not a model: it is not on OpenRouter’s model list (checked November 14, 2026), so it cannot be used on this site. Claude Opus 5.5, the model it runs on, is on OpenRouter and in the chat on this page.Source: openrouter.ai · checked 2026-11-14
Use it now
Chat
This chat starts with Claude Opus 5.5, not Claude Duet.
Nearest available
Alternatives to Claude Duet you can use now
Claude Opus 5.5
Anthropic$4 / $20 (per million tokens)
- Released on September 22, 2026.Source: anthropic.com · checked 2026-11-13
- Anthropic’s overview: "for long-running agentic coding and knowledge work".Source: platform.claude.com · checked 2026-11-13
- Listed on OpenRouter as anthropic/claude-opus-5.5 since September 22, 2026, at $4 / $20 per million tokens.Source: openrouter.ai · checked 2026-11-13
Claude Fable 5.2
Anthropic$8 / $40 (per million tokens)
- Released on November 9, 2026 (Anthropic’s model page marks it "Latest").Source: platform.claude.com · checked 2026-11-13
- Anthropic describes it as "for demanding reasoning and long-horizon agentic work": hours-long agent tasks, multi-step deep research, and finished documents, spreadsheets and presentations.Source: platform.claude.com · checked 2026-11-13
- Context window 1M tokens; maximum output 128K tokens; text and image input, text output.Source: platform.claude.com · checked 2026-11-13
FAQ
Claude Duet FAQ
What is Claude Duet?
Anthropic calls it a new app where Claude works as a proactive agent: it watches the apps you connect, tells you when something needs you, completes tasks you ask for and asks before it acts on your behalf. The research preview opened on October 21, 2026.
How do I get Claude Duet?
Join the waitlist on Anthropic’s Claude Duet page. You need a Pro, Max or Ultra plan and a Claude account in the US; it is not on Team or Enterprise plans yet, and invitations go out in waves.
How much does Claude Duet cost?
During the research preview it is included with Pro, Max and Ultra plans at no extra cost, but its work, including background checks, counts toward the plan’s usage limits.
Which model does Claude Duet use?
Claude Opus 5.5, and you cannot choose another. Opus 5.5 costs $4 / $20 per million input / output tokens through the API; see Claude Fable 5.2 vs Claude Opus 5.5 for how it compares with Anthropic’s newer model.
Is Claude Duet available outside the US?
No. Anthropic says it is available in the US only during the research preview. The chat on this page is not Claude Duet, but it runs Claude Opus 5.5 and Claude Fable 5.2 on credits, without a Claude subscription.
What can Claude Duet connect to?
The connectors you have connected in Claude, such as Gmail, Google Calendar, Google Drive, Slack, QuickBooks, HubSpot, Docusign and Calendly. It asks before it sends a message, makes a payment, signs a document or deletes anything.
What are its limits?
Anthropic says it can misread a thread or misjudge what is urgent, checks your accounts at set intervals rather than continuously, and does not make phone calls or send text messages.
Is this an Anthropic page?
No. This page is unofficial and not affiliated with or endorsed by Anthropic. Every fact links to its source.