# Anthropic’s Claude Duet adds always-on agent to Pro, Max, Ultra plans

Digest AI · Agents & Tools · published 2026-11-04T04:00:00Z

Canonical: https://digestai.news/story/anthropics-claude-duet-adds-always-on-agent-to-pro-max-ultra-plans

## Summary

Anthropic’s **Claude Duet** is an always-on AI agent that proactively checks connected apps—like Gmail, Slack, and Google Drive—and sends morning briefs or alerts without manual input. Unlike traditional chatbots, Duet runs in the background on a virtual machine, using OAuth for security and sharing Claude’s usage limits. It’s currently in **research preview** for U.S. subscribers on Pro, Max, and Ultra plans, with access granted via waitlist or TestFlight invites for iOS/Android or via [claude.ai](https://claude.ai).

Duet’s core features include **proactive task suggestions**, a **Tasks tab** for background work, and a **Make tab** for project templates like email triage. It asks for approval before sending, paying, signing, or deleting anything, though sensitive actions (e.g., trading securities) remain restricted. Users report quick setup but note **rapid token consumption**—background checks and tasks drain Claude’s session limits faster than expected. Anthropic emphasizes safety measures like prompt injection screening and red-team testing, but the agent’s accuracy depends on user oversight, especially for nuanced priorities. Zapier integration expands connectivity to **9,000+ apps**, enabling deterministic automations for repetitive tasks while Duet handles judgment calls.

## Key points

- Claude Duet is Anthropic’s always-on agent for Pro/Max/Ultra users, checking apps and sending briefs without manual prompts
- Uses Claude’s usage limits but drains them faster due to background checks and tasks, per tester reports
- Zapier integration adds 9,000+ app connections and automates repetitive tasks while Duet handles variable workflows

## Why it matters

Duet shifts AI from reactive chat to proactive automation, blending human oversight with agent-driven tasks. For businesses, it could reduce manual checks but risks token costs and misprioritization without Zapier’s structured workflows.

## Sources

1. [What is Claude Duet?](https://zapier.com/blog/claude-duet) (Zapier Blog, 2026-11-04)

Part of the developing story: [Anthropic Expands Claude Duet Capabilities](https://digestai.news/thread/anthropic-launches-claude-duet-proactive-ai-preview-for-pro-max-plans) (2 stories)

## Cite

Digest AI, "Anthropic’s Claude Duet adds always-on agent to Pro, Max, Ultra plans", 4 November 2026, https://digestai.news/story/anthropics-claude-duet-adds-always-on-agent-to-pro-max-ultra-plans

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