Anthropic's standalone proactive AI agent on Opus 5.5 — it watches your connected apps, sends a morning brief, runs tasks in its own cloud computer, and asks for approval before anything sensitive. Launched October 21, 2026 as a US waitlist research preview on Pro and Max.
Last verified · 2026-10-22 · by Moe Ameen
Claude Duet is a proactive AI agent from Anthropic — the product page describes it as "a proactive agent that understands what needs your attention." Instead of waiting for a prompt, it connects to your apps, checks them periodically, and surfaces what needs you — a short morning brief with drafted next steps, then alerts through the day when something comes up. It launched October 21, 2026 as an early research preview, runs on Opus 5.5, and lives in a standalone app for iOS and Android plus the web at claude.ai.
Duet works in the cloud on its own virtual machine with its own browser, so it can carry out tasks without local access to your computer — light admin like scheduling a meeting, or heavier jobs like building a dashboard or a small web app, reporting back when it finishes. Anthropic says it connects to more than 6,000 connectors and plugins (Gmail, Slack, Stripe, and QuickBooks among them) and inherits the memory, skills, and connected apps from your existing Claude account, so setup is light and everything stays in one ongoing thread.
The safety model is deliberate: Duet pauses and asks for approval before sensitive actions like sending a message, making a payment, signing a document, or deleting a file; it doesn't see passwords or logins; and it runs a dedicated classifier and safety prompt against information leaks. It also shows what it has done and is doing, so you can steer it mid-task.
The honest framing for a creator: Duet is a general proactive assistant, not a content tool. It can draft a message, research a topic, build you a dashboard, and keep your calendar clear — but it does not generate short-form video, carousels, quote graphics, or a blog, and it does not schedule or publish to social platforms. It manages the work around your content; it does not manufacture or ship the content itself.
Think of Duet as the front of your day and [Kompozy](/) as the factory behind it. Duet is excellent at the thing that happens before a post exists: it reads across your Slack, email, and tools, notices the question a customer keeps asking or the thread worth turning into content, and hands you a tidy brief — the angle, the key points, the source links — in the morning. What it can't do is turn that brief into finished, on-brand content or get it onto a feed. That's the entire job Kompozy is built for, and it's the bigger lift.
Here's the concrete handoff. Take the brief Duet surfaces — a topic, a few bullets, a link — and drop it into Kompozy as a source. Kompozy writes the copy under a [Persona Brief](/glossary/persona-brief) and banned-word filters so it lands in your voice, then fans that one idea into the formats a general agent can't make: [Persona Shorts](/glossary/persona-shorts) and avatar video, brand-exact Carousel Posts, Quote Graphics, Photo Posts, a Blog Article, and an Email Newsletter — 25-plus outputs from one seed. You review them in a per-post queue, and Kompozy schedules and publishes the set across the eight social platforms plus blog and email with [Autopilot](/glossary/autopilot). Duet decides what's worth saying today; Kompozy makes it in every format and ships it everywhere. Where Duet asks for approval before it acts, Kompozy's review queue gives you the same control over what goes live — so the whole chain, from "this is worth posting" to "it's live everywhere," stays yours to approve.
Claude Duet is a proactive AI agent from Anthropic, launched October 21, 2026, that connects to your apps, checks them periodically, and reaches out with a morning brief and alerts before you ask. It runs on Opus 5.5 in its own cloud computer and in a standalone app for iOS and Android plus the web, asking for approval before sensitive actions like sending messages or making payments.
No. Duet is a general proactive assistant — it can draft messages, research topics, and build things like dashboards, but it does not generate finished social formats such as short-form video, carousels, or quote graphics, and it does not schedule or publish to social platforms. For that, pair it with a content engine like Kompozy, which generates on-brand content and publishes across nine platforms.
Use Duet for the front of the workflow — let it surface, from your inbox and tools, which topics are worth posting and hand you a brief. Then drop that brief into Kompozy as a source, and Kompozy writes the copy in your brand voice, generates the video, carousels, quote cards, photo posts, blog, and newsletter, and schedules and publishes them across nine platforms. Duet finds the idea; Kompozy makes and ships it.
At launch Duet is an early research preview available by waitlist to Claude Pro and Max subscribers in the United States, with no separate charge — it shares your plan's usage limits and its background checks count toward them. Team and Enterprise plans are not included yet.
Duet runs on Opus 5.5 and works in its own cloud virtual machine with its own browser. Anthropic says it connects to more than 6,000 connectors and plugins, including Gmail, Slack, Stripe, and QuickBooks, and it carries over the memory, skills, and connected apps from your existing Claude account.