What is Claude Duet? Anthropic's new proactive AI agent explained
Anthropic introduced Claude Duet on October 21, 2026, describing it as a different way of working with Claude. Instead of waiting for a user to open a chat and ask a question, Duet is designed to notice when something needs attention, start useful work, and deliver finished results for review.
The difference is not simply that Claude Duet can answer questions or generate documents. Existing Claude tools already support many of those activities. What makes Duet distinctive is its combination of proactive monitoring, connected applications, ongoing memory, background execution, and permission-based actions.
Anthropic says the product was developed primarily for professionals and small-business owners who manage many moving parts throughout the day. These can include customer communications, meetings, invoices, contracts, schedules, internal updates, marketing activities, and longer projects.
Claude Duet uses Claude Opus 5.5, and runs tasks using its own cloud-based computer. It can continue working after the user closes the mobile app or web session, without requiring their personal laptop to stay switched on.
As an example, a business owner could ask Claude Duet to review outstanding invoices, prepare suitable reminder emails, and organize the results into a document. Duet can perform the preparatory work and request approval before sending messages on the user's behalf.
The product is currently a research preview, rather than a fully open release. Anthropic is admitting users through a waitlist while evaluating reliability, safety, usefulness, and how often the agent should interrupt someone.
Ordinary AI conversations usually begin when someone asks the assistant for help. Claude Duet is designed to work in both directions: you can assign it a task, but it can also identify something relevant in your connected accounts and bring it to your attention.
Official announcement: Anthropic — Introducing Claude Duet, October 21, 2026 .
How Claude Duet works: A cloud computer, connected apps, and proactive updates
Claude Duet operates through an ongoing conversation connected to the user's Claude account. It can receive typed messages or voice instructions, remember relevant context, select suitable tools, and complete work across supported applications.
Unlike an AI assistant limited to the active chat window, Duet can perform work in the background using a virtual machine with its own browser. This allows it to navigate supported websites and use connected services while the user's phone or computer is offline.
1. It starts with your existing Claude context
Claude Duet uses the same Claude account, allowing relevant memory, skills, and previously configured connectors to carry over. This reduces the amount of setup required for people who already use Claude for work.
Users can communicate with Duet through a main conversation thread and create separate channels for different topics. These channels share memory, helping the assistant maintain continuity between related assignments.
2. It checks connected accounts periodically
Anthropic designed Claude Duet to prepare a daily morning briefing and keep track of relevant changes in connected services, such as email and calendars.
However, Duet does not continuously inspect every account every second. Anthropic says it performs checks every few hours to balance usefulness with subscription usage limits. The user can also indicate what kinds of updates they want to receive and how frequently.
3. It completes tasks while you are away
A task can continue after the Duet app has been closed. Once the work finishes, or when a decision is required, the assistant can notify the user.
Larger tasks may result in editable files, including research briefs, spreadsheets, presentations, financial models, and dashboards. Anthropic's Help Center says these outputs appear in Duet's Make tab.
4. It asks before consequential actions
Claude Duet is intended to distinguish between preparing work and taking actions that have real consequences.
It can draft a message independently, for example, but must obtain approval before sending it. Similar approval requirements apply to payments, signing documents, and deleting information.
This approval model is important because the agent may be working with business communications, customer information, purchases, or other activities that require human oversight.
Example: A meeting preparation task
Imagine sending Claude Duet a short instruction to prepare background information for an upcoming client meeting. It could examine connected calendar details, review available notes or correspondence, and assemble a brief for you to read.
If the preparation revealed a scheduling conflict, Duet could bring that conflict to your attention and prepare a proposed response. An external message or consequential schedule change would still be subject to the applicable permissions and approval process.
Official explanation: Claude Help Center — Get started with Claude Duet .
What can Claude Duet actually do?
Claude Duet supports several categories of work, ranging from everyday administration to more complex business and professional projects. Its usefulness depends on the applications connected, permissions granted, the complexity of the task, and the capabilities available during the research preview.
Morning briefings and priority management
One of Claude Duet's signature features is its ability to produce a morning briefing from relevant connected applications. It can review calendar events, identify important email threads, and highlight matters that might require attention.
The goal is not to send an endless stream of notifications. Anthropic says Duet is designed to exercise judgment about what matters now and what can wait.
Email review and response drafting
Duet can help locate messages that require a response, summarize important threads, and prepare draft replies using available context from connected accounts.
This may help with tasks such as replying to clients, preparing follow-ups, or identifying conversations that have gone quiet. Sending an email requires approval.
Scheduling and meeting preparation
Claude Duet can work with supported calendar and scheduling services to prepare for meetings, identify conflicts, and help organize upcoming commitments.
Anthropic also describes examples of Duet preparing background information before a meeting and proposing adjustments when calendar events appear to conflict.
Invoices, accounting, and payroll preparation
Through supported business tools, Claude Duet can identify unpaid invoices, draft reminder messages, and help prepare certain accounting or payroll workflows.
Anthropic specifically mentions integrations involving QuickBooks, Stripe, and Gusto. Any actual payment or consequential financial action must follow Duet's approval requirements and applicable restrictions.
Documents, spreadsheets, and presentations
Duet can be assigned larger tasks such as compiling a research brief, creating a dashboard, building a financial model, preparing a slide deck, or organizing information into a document.
Anthropic also describes support for financial forecasts, sales projections, prototypes, and certain web development tasks.
Sales, marketing, and customer operations
With suitable connected services, Claude Duet can help prepare customer follow-ups, develop marketing materials, organize campaign information, and draft communications based on available customer records.
Anthropic's launch examples include HubSpot, Canva, Shopify, LinkedIn, and Docusign, although specific actions and permissions differ between integrations.
| Area | Example task |
|---|---|
| Review important threads, identify follow-ups, and prepare draft replies. | |
| Calendar | Prepare meeting briefs, review upcoming events, and identify scheduling conflicts. |
| Finance | Locate outstanding invoices, prepare reminders, and assist with supported payroll workflows. |
| Sales | Prepare follow-up communications using available CRM history. |
| Research | Assemble company background briefs and structured documents. |
| Analytics | Create dashboards, models, and forecasts. |
| Marketing | Prepare campaign materials and organize creative work. |
| E-commerce | Assist with supported Shopify store management workflows. |
These are supported use cases and examples, not guarantees that every task will succeed without correction. Because Claude Duet is still being tested, users should review its outputs and confirm important details.
Sources: Anthropic's launch announcement and official Claude Duet product page .
Which apps and integrations work with Claude Duet?
Claude Duet draws on Anthropic's existing ecosystem of connected applications and plugins. The company advertises access to a marketplace containing more than 6,000 connectors and plugins.
This does not mean every listed integration offers identical functionality in Duet. Some services have limited capabilities, and certain integrations are still unavailable during the research preview.
Users normally initiate app connections themselves. Existing compatible connectors associated with a Claude account can carry over into Duet.
| App or service | Potential workflow |
|---|---|
| Gmail | Review messages and prepare email responses. |
| Google Calendar | Review meetings, deadlines, and schedules. |
| Google Drive | Work with accessible documents and stored files. |
| Slack | Review relevant communications, subject to preview limitations. |
| QuickBooks | Review accounting information and unpaid invoices. |
| Stripe | Examine eligible payment and invoice information. |
| HubSpot | Prepare CRM-based customer follow-ups. |
| Docusign | Prepare supported agreement and signature workflows. |
| Gusto | Assist with supported payroll preparation. |
| Canva | Prepare creative and campaign-related work. |
| Shopify | Assist with supported online-store operations. |
| Link and Shop Pay | Support approved purchases through connected wallets. |
Can Claude Duet use websites without a connector?
Yes. Anthropic says Duet can use its cloud browser when a website does not have a suitable connector.
That flexibility can allow Duet to perform work across websites that are not directly represented in the marketplace. However, browsing is subject to the website's accessibility, authentication requirements, restrictions on automated agents, and Duet's own safety controls.
Can Claude Duet make purchases?
Anthropic supports certain purchase workflows using Link by Stripe and Shop Pay. These are distinct from the ordinary Stripe connector used to inspect eligible business information.
A purchase requires the user's approval. Anthropic says supported wallet transactions use a single-use payment card restricted to the approved purchase rather than disclosing the user's normal payment card number to the agent.
Anthropic's Help Center notes that some connectors, including Slack, have limitations during the preview. Microsoft 365 integration is not yet available in Claude Duet, even though Microsoft services exist elsewhere in the broader Claude ecosystem.
Official details: Get started with Claude Duet .
Claude Duet vs regular Claude vs Claude Cowork: What's the difference?
One important question is whether Claude Duet replaces the existing Claude app or simply introduces a new name for features that already exist.
The distinction is not that only Duet can complete tasks. Claude Cowork already supports multi-step work, connected applications, cloud execution, and scheduled tasks.
In fact, Anthropic has been merging Claude chat and Cowork into a more unified experience. Claude Duet is a separate proactive agent experience designed around ongoing communication, automatic briefings, and decisions about what deserves the user's attention.
| Experience | Main difference |
|---|---|
| Regular Claude chat | Primarily begins with the user's question or request. Useful for conversation, writing, analysis, research, and other interactive tasks. |
| Claude Cowork | Focuses on carrying out larger multi-step work across files, tools, and applications. Cloud tasks and scheduled execution are already supported, with capabilities varying by platform and plan. |
| Claude Duet | Focuses on proactive assistance: monitoring connected accounts, preparing briefings, identifying matters needing attention, handling delegated work, and asking for decisions at appropriate moments. |
Claude Duet is therefore best understood as a new working relationship with Claude, rather than a completely separate intelligence or an exclusive source of every agentic capability.
A person might use regular Claude for a quick explanation, Cowork for a structured report, and Duet for ongoing assistance that proactively brings relevant work to their attention. The product experiences overlap, and Anthropic may continue changing those boundaries.
Sources: Claude Duet product page , Claude Cowork product page , and Claude Cowork platform guide .
Who can access Claude Duet right now?
Claude Duet is not yet available to every Claude user. Anthropic opened its research preview on October 21, 2026, with invitations limited to eligible US Pro and Max subscribers.
Users need an eligible account and an invitation issued through the official waitlist. Having a paid Claude plan does not automatically activate the Duet research preview.
| Requirement | Current status |
|---|---|
| Release stage | Research preview. |
| Launch date | October 21, 2026. |
| AI model | Claude Opus 5.5. |
| Eligible plans | Claude Pro and Max. |
| Free plan | Not eligible. |
| Team and Enterprise | Not included in the research preview yet. |
| Country eligibility | United States only during the current preview. |
| Access method | Waitlist invitation. |
| Supported devices | Separate iOS and Android apps, plus web access through Claude. |
| Additional subscription fee | None during the research preview for eligible Pro and Max accounts. |
Is Claude Duet available outside the United States?
Not generally during this initial research preview. Anthropic's published eligibility requirements specify a Claude account in the United States, an eligible subscription, and a waitlist invitation.
Anthropic has not announced a confirmed date for broader international availability. Its Help Center says invitations are being issued in waves, and the company plans to expand access to additional subscription plans later.
This is a product-access restriction rather than an indication that Claude itself is unavailable in other regions.
The current Duet research preview is restricted to eligible US accounts. Anthropic has not provided a confirmed international rollout schedule. Users elsewhere should follow the official product page for future eligibility announcements rather than assuming a standard Claude subscription guarantees access.
Official requirements: Claude Duet Help Center .
How to get Claude Duet: Step-by-step waitlist instructions
Anthropic is distributing Claude Duet invitations through a waitlist. If you meet the current research-preview requirements, you can register through the official Claude Duet page.
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Open the official Claude Duet page. Visit claude.com/product/claude-duet and select the Join the waitlist option.
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Enter your name and email address. If you already subscribe to Claude, use the same email address associated with your Claude account.
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Select your subscription plan. Anthropic's preview is currently intended for eligible Pro and Max subscribers.
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Choose your mobile device type. The form asks whether you use an iPhone or Android device. You may also be invited to describe your work and the tasks you would delegate.
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Submit the application. Anthropic admits participants gradually. Submitting the form does not guarantee immediate access or a specific invitation date.
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Check for an invitation email. When access becomes available, Anthropic will send instructions for installing or opening the Claude Duet experience.
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Complete the invitation setup. Open the invitation on your phone and follow the iOS or Android instructions. Use the Apple or Google account linked to the invited email address.
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Sign in and connect your apps. Open Claude Duet, sign in with the eligible Claude account, review available permissions, and begin with a manageable task.
Why you might not receive access immediately
Anthropic lists several reasons users may not yet see Claude Duet, even after registering.
- Invitations are distributed in waves rather than to every applicant immediately.
- The account may not meet the current country or subscription requirements.
- Team and Enterprise plans are not yet eligible for this research preview.
- The waitlist email may not match the Claude account or the Apple or Google account used during installation.
- After accepting an invitation, the mobile app may take a few minutes to become available.
Anthropic specifically says access is tied to the email address used on the waitlist. Using a different email for the Claude account or associated mobile account can prevent successful activation.
Official instructions: Get started with Claude Duet .
Is Claude Duet free? Pricing, subscription plans, and usage limits
Claude Duet does not currently require a separate add-on subscription for users admitted to its research preview. Anthropic says it is included at no additional cost with eligible Claude Pro and Max plans.
However, the absence of a separate Duet fee does not mean unlimited agent activity. Duet shares the usage allowance of the associated Claude subscription.
Does Claude Duet use your existing Claude limits?
Yes. Anthropic confirms that Duet uses the same plan limits, including relevant five-hour session limits and weekly limits.
These limits apply not only when the user directly asks Duet to complete something, but also when it performs background checks or scheduled monitoring.
Larger projects, such as creating financial models, building presentations, or coordinating multiple apps, can consume more model turns and usage than a simple question.
| Question | Current answer |
|---|---|
| Separate Duet subscription? | No additional fee for admitted Pro and Max subscribers. |
| Available on Free? | No, not during the current preview. |
| Unlimited Duet tasks? | No. Duet shares the existing plan usage limits. |
| Do background checks count? | Yes. Monitoring and briefings consume usage. |
| Can heavy tasks use more? | Yes. Larger workflows can require substantially more background work. |
| Is a usage reset available? | Yes, a one-time full reset for admitted preview users, subject to Anthropic's deadline. |
One-time usage-limit reset for early Claude Duet users
Anthropic's current Help Center documents an additional benefit for people admitted to the Duet research preview: a one-time full usage-limit reset.
According to Anthropic, admission to the preview provides a reset of both the five-hour session and weekly usage limits. This particular reset offer is stated to remain available until November 30, 2026.
The reset is not a permanent increase in subscription capacity. Once the temporary reset has been applied, normal plan limits continue to govern usage.
Claude Duet may have no separate subscription charge during the preview, but background activity and complex assignments still consume the same plan limits used by regular Claude. Heavy Duet use may therefore reduce the capacity available for other Claude conversations and tasks.
Pricing and reset details: Anthropic — Claude Duet pricing and usage limits .
Is Claude Duet safe? How approvals, privacy, and account access work
An AI agent that can read business emails, inspect financial records, prepare messages, and interact with websites requires more controls than a chatbot that only generates text.
On October 23, 2026, Anthropic published a dedicated explanation of Claude Duet's safety and privacy systems. The document describes permission checks, separation of credentials, sensitive-information protections, and controls for connected apps.
Important actions require approval
Anthropic says Claude Duet is designed to obtain user approval before sending messages, making payments, signing documents, or deleting information.
Before proceeding, the agent displays the relevant action for review. For sensitive communications, this can include recipients and content.
A separate automated safety check also evaluates whether proposed actions match the user's intent.
Some actions are prohibited even with permission
Certain activities remain outside Claude Duet's permitted scope. Anthropic specifically identifies securities trading, moving money between bank accounts, and accessing someone else's account.
Some additional consequential actions require individual confirmation even when similar actions have been approved before.
Passwords and authentication tokens are separated from the agent
Anthropic says Claude Duet's model does not directly receive passwords, browser cookies, or authentication tokens.
When a supported website requires a password, the credential is entered through a separate secure form and transferred to the cloud browser without exposing the password to the language model itself.
Anthropic has also described planned 1Password integration, but this should not be treated as a fully available feature during the initial preview.
Connected apps can be disconnected
Users control which applications are connected. Disconnecting an app prevents future access through that connection.
An important privacy detail is that disconnecting a service does not automatically erase information Claude Duet previously learned from it. Anthropic says remembered context can persist until the user resets the relevant memory.
Privacy protections still have limitations
Claude Duet encounters information written by other people, including emails and website content. Such material can contain misleading instructions intended to manipulate an AI agent.
This class of attack is commonly known as prompt injection. Anthropic says it uses multiple safeguards against such behavior, but also acknowledges that protections may produce errors or miss problematic content.
Before approving a consequential action, check the destination, recipient, amount, document, or message being submitted. Anthropic's safeguards are designed to reduce risks, not eliminate the need for human judgment.
Official security publication: Claude Duet Safety, Privacy, and Security, October 23, 2026 .
Claude Duet limitations: What the agent cannot do yet
Claude Duet's research preview includes meaningful limitations. Anthropic describes it as an early product that may misinterpret information, misunderstand priorities, or complete some tasks less reliably than others.
- Limited access
- The research preview is restricted to invited US Pro and Max accounts. Team, Enterprise, and Free plans are not currently included.
- No model selection
- Claude Duet uses Claude Opus 5.5. Users cannot currently select a different model for Duet tasks.
- Limited browser visibility
- Users can review task progress and outcomes, but cannot yet watch Duet's browser in real time or take over its browser.
- Periodic rather than continuous checks
- Duet checks connected accounts at intervals. Urgent information may arrive between checks and go unnoticed until the next review.
- Limited local-file access
- Duet cannot automatically access every project or file stored on the user's computer.
- No phone calls or SMS messages
- The preview cannot place telephone calls or send text messages to other people. Approved email sending is supported through eligible connected accounts.
- Some integrations remain limited
- Certain connectors offer reduced functionality during the preview. Microsoft 365 is not available yet in Claude Duet.
- Personal errands may be less reliable
- Anthropic says Duet has been built primarily around work, and personal errands such as ticket bookings are not yet a particular strength.
- Mistakes are possible
- Duet may misread a conversation, incorrectly prioritize an issue, or prepare work that requires correction.
These limitations matter when evaluating Duet for important business processes. A proactive agent can reduce the amount of manual coordination required, but its output should not be treated as infallible simply because it completed a task autonomously.
Source: Claude Duet Help Center — Limitations .
Practical Claude Duet examples: Tasks worth trying first
For newly admitted users, the most useful first task is often one that involves a clear objective, accessible information, and an easy way to review the result.
Rather than immediately assigning a large business operation, a user can test Claude Duet with a manageable workflow and gradually increase complexity after observing how it performs.
Example 1: Prepare a morning briefing
"Review my connected calendar and important emails. Identify anything that needs a response today, prepare a concise briefing, and draft suggested replies without sending them."
This tests how well Duet identifies priorities, summarizes information, and separates drafting from taking action.
Example 2: Review outstanding invoices
"Check the available invoice records in my connected accounting tools. Organize outstanding invoices by due date and prepare reminder messages for review."
This is an example of a supported accounting workflow. Actual capabilities depend on the connected service and authorized account access.
Example 3: Prepare for a client meeting
"Find my upcoming client meeting, review the available background documents and relevant correspondence, and prepare a one-page briefing with questions I should consider."
This tests research, synthesis, and calendar awareness without requiring the agent to send external messages.
Example 4: Build a business dashboard
"Using the data available in my connected files, prepare a dashboard summarizing key business performance metrics. Include the underlying figures and explain any missing data."
Larger tasks may require more execution time and consume more of the plan's usage allowance.
These instructions are illustrative examples, not guarantees of access to every service or successful completion. Their value lies in providing clear goals, identifying acceptable information sources, and preserving human review before important external actions.
Frequently asked questions about Claude Duet
What is Claude Duet?
Claude Duet is Anthropic's proactive AI agent experience, launched as a research preview on October 21, 2026. It works through connected applications, performs delegated tasks, prepares briefings, and notifies users when their attention is required.
Which AI model powers Claude Duet?
Claude Duet currently uses Claude Opus 5.5. Anthropic says users cannot select another model during the research preview.
Is Claude Duet available now?
Yes, but only through a limited research preview. Eligibility currently requires an invited US Claude Pro or Max account.
How do I join the Claude Duet waitlist?
Visit the official Claude Duet product page , select Join the waitlist, complete the requested details, and submit the application. Anthropic sends invitations gradually.
Is Claude Duet free?
It is included without a separate Duet fee for eligible Pro and Max subscribers admitted to the research preview. It is not currently available on the Claude Free plan.
Does Claude Duet have separate usage limits?
No separate unlimited allowance is provided. Duet uses the existing subscription limits, including usage consumed by background checks and longer tasks.
What is the Claude Duet usage-limit reset?
Anthropic states that people admitted to the research preview receive a one-time reset of both five-hour and weekly usage limits. The published deadline for that offer is November 30, 2026.
Can Claude Duet work while my phone is off?
Yes. Claude Duet uses its own cloud computer, allowing supported tasks to continue without keeping your personal phone or laptop switched on.
Does Claude Duet work on Android and iPhone?
Yes. Anthropic describes standalone Claude Duet apps for iOS and Android, together with a web experience accessible through Claude. Access still depends on research-preview eligibility and invitation.
Can Claude Duet access my Gmail and calendar?
It can use compatible Gmail and Google Calendar connections that the user authorizes. Existing eligible Claude connectors may carry over.
Can Claude Duet send emails automatically?
Claude Duet can prepare draft emails, but Anthropic says it must request approval before sending messages on the user's behalf.
Can Claude Duet make payments?
It supports certain approved purchases through Link and Shop Pay, subject to user confirmation. Other financial actions, such as moving money between accounts, remain prohibited.
Is Claude Duet the same as Claude Cowork?
No. Their capabilities overlap, but Duet is designed around proactive monitoring and timely assistance. Cowork focuses on carrying out substantial delegated tasks, with existing cloud and scheduled task capabilities.
Is Claude Duet available for Team and Enterprise subscribers?
Not during the current research preview. Anthropic says it intends to expand eligibility later, but has not provided a confirmed date.
When will Claude Duet launch worldwide?
Anthropic has not announced an official worldwide release date. The preview currently begins with eligible US accounts, and international expansion remains unconfirmed.
Final takeaway: What Claude Duet means for the future of AI assistants
Claude Duet represents Anthropic's move toward an AI assistant that does not depend entirely on users initiating every interaction. It is designed to monitor selected connected services, identify tasks worth addressing, and complete delegated work using its own cloud-based computer.
Its defining capability is not merely producing a document or completing an automated workflow. It is the combination of proactive awareness, ongoing context, background execution, and approval-based action.
For professionals and businesses, this could change how routine administrative work is organized. Instead of repeatedly checking several applications to discover what needs attention, users can delegate selected monitoring and preparation tasks to an assistant.
However, Claude Duet remains an early research preview. Anthropic acknowledges that it can misjudge urgency, misread information, and make mistakes. Supported integrations and account eligibility are also still limited.
The current launch is restricted to invited US Pro and Max subscribers, with no confirmed worldwide release date. Early users also need to account for shared usage limits because background monitoring consumes the same subscription allowance as other Claude work.
For people who meet the requirements, the official waitlist is the starting point. For everyone else, the product is worth understanding as another indication of where personal and business AI agents are heading: from tools that respond to requests toward assistants that can prepare useful work before being prompted.
Explore Claude Duet and Its WaitlistPrimary sources: Introducing Claude Duet , Claude Duet Help Center , Claude Duet Safety, Privacy, and Security , and official product page .