Claude Duet for commercial real estate teams

Claude Duet is Anthropic's new always-on agent, and for a commercial real estate broker its most useful job is the one that never makes it onto a to-do list: noticing the thread that went quiet, the tour tomorrow with no prep, and the document that has been waiting on a signature since Tuesday. It does that work in the background and asks before anything leaves your account. It is also a research preview on personal plans only, so a firm should decide where it is allowed before a broker connects their deal inbox.

We build AI workflows for brokerage and investment teams, and the facts below come from Anthropic's own announcement, product page, help center, and safety documentation as of October 29, 2026. Duet is changing week to week, so check those pages before you plan around any one detail.

What is Claude Duet?

Anthropic announced Claude Duet on October 21, 2026, as a research preview of a proactive agent built for professionals and small business owners. It is a separate app on iOS and Android, and it also runs on claude.ai. According to the announcement, it:

• Sends a morning brief of the most important items across your connected apps.
• Checks your connected accounts every few hours and messages you only when something needs attention.
• Works on tasks in the background on its own virtual machine with its own browser, so your phone and laptop can be off.
• Shows you what it plans to send, pay, sign, or delete and waits for your approval.

Duet runs on Claude Opus 5.5 and picks how much effort each job needs. It carries over your existing Claude memory, skills, and connected apps, which Anthropic says number more than 6,000 connectors and plugins, including Gmail, Slack, HubSpot, Docusign, and Google Drive. Larger jobs come back as editable files, such as a research brief, a financial model, a deck, or a dashboard, in a tab the app calls Make.

The first independent reviews are positive with caveats. Dan Shipper of Every called it "the first personal agent I'd call a pro tool", while noting that its email drafts were weaker than a rival's and that scheduled runs could not reach custom connectors.

Why an always-on agent fits a broker's week

Most AI tools a CRE team uses today wait to be asked. A broker opens a chat, pastes a rent roll, and gets an answer. That covers the analytical work well, and we describe it in underwriting commercial real estate faster with AI.

The work that actually loses deals is different. It is the follow-up that did not happen because the broker was touring all afternoon, the tenant rep who asked for a floor plan and never got it, the LOI that sat unsigned for four days, and the call with an owner where nobody pulled the last conversation first. None of that is hard. It slips because nobody is watching for it.

That is what Duet is built to do. Its check-ins look across email, calendar, the CRM, and e-signature, and it raises what has gone quiet or is coming up, with a draft of the next step attached. The broker's job becomes reviewing and approving, which takes minutes, instead of remembering, which fails under load.

A broker's day with Claude Duet

The map below shows how a leasing or investment sales broker might work with Duet on an ordinary day. The gold steps are the approval gates, the points where Duet stops and waits for a person.

A broker's day with Claude Duet

1. 6:30 a.m.

   Duet

   Morning brief

   Reads overnight email, today's calendar, and open HubSpot deals. Lists the three tours, the LOI still unsigned in Docusign, and two prospects who have not replied in a week, each with a drafted next step.

2. 7:15 a.m.

   You

   Triage from the phone

   The broker reads the brief over coffee, kills one suggestion, edits a follow-up, and asks Duet to prep the 10 a.m. tour.

3. 7:20 a.m.

   Approval

   Approve the follow-ups

   Duet shows each email with every recipient and the full text. The broker approves two and holds one for a call instead.

4. 8:00 a.m.

   Duet

   Tour prep in the background

   Pulls the tenant's requirements from the email thread, the building's availability sheet from Drive, and notes from the last call in HubSpot, and builds a one-page tour sheet in Make.

5. 11:30 a.m.

   Duet

   Midday check-in

   Flags that the tenant rep asked for a test fit and the landlord's counsel sent a redline. Drafts a reply to the rep and summarizes the redline's changed clauses.

6. 12:00 p.m.

   You

   Read the redline summary

   The broker checks the summary against the document itself before forwarding anything, because a summary is a lead, not a legal reading.

7. 3:00 p.m.

   Duet

   Keep the pipeline current

   Updates a pipeline dashboard with the day's activity, deal stages, and expected close dates, and notes which deals have had no activity in 14 days.

8. 5:30 p.m.

   Approval

   End-of-day approvals

   Reviews the tour recap to the tenant, the calendar invite for a second tour, and a CRM note. Approves the invite and the note, edits the recap, then sends.

Three things make this map work. Duet never sends to a client without the broker seeing it. The broker checks anything with legal or financial weight against the source document. And the agent does the watching, which is the part a busy person is worst at.

Five CRE workflows to try first

These are the jobs where Duet's design, which pairs background checks with approval before action, fits brokerage work best.

1. The quiet-thread chaser. Ask Duet to watch every active pursuit and listing in your inbox and CRM, and flag any thread where the other side owes you something or you owe them, with a drafted nudge. This is the highest-value use for most brokers, and it builds on Duet's stated habit of following up on quiet threads.
2. Tour and call prep. When a tour or owner call lands on the calendar, have Duet assemble a one-page sheet from the email history, the CRM record, and the building files in Drive. If your team has a standard call sheet, put it in a Claude skill so Duet uses your format every time.
3. Signature and document tracking. With Docusign connected, Duet can tell you which LOIs, leases, and amendments are still out, who has not signed, and for how long. It can draft the reminder, and you approve it. A connector being listed does not guarantee every operation, so test what the Docusign connection can actually read before relying on it.
4. A living pipeline page. Ask for a dashboard of active deals, their stages, and the next dated step, kept current from the CRM and your email. Anthropic lists dashboards among Duet's core outputs, Every's review says it keeps documents and dashboards current, and this replaces the Monday spreadsheet a team lead rebuilds by hand.
5. Inbound OM and teaser triage. Have Duet read incoming offering memoranda and teasers, file them in Drive, and pull the headline terms into a tracker for review. Keep a person on the screening decision, and see how to put deal documents into Excel and the CRM with AI for the checks that make extraction dependable.

A sixth job, a weekly submarket report, can run as a Duet task too. The method is the same as in building a weekly commercial real estate market report with AI, including the review before it goes out.

What Claude Duet cannot do yet

The preview has limits that matter more in brokerage than in most fields. Anthropic's getting-started guide lists most of them.

Limit	Why it matters for a CRE team
No Microsoft 365 connector in Duet	Many brokerages run on Outlook and SharePoint. If yours does, Duet cannot see your inbox or calendar today.
No phone calls or texts to other people	Much of brokerage happens on the phone and by text. Duet will not see those conversations unless they are logged in the CRM or email.
Checks run at intervals, every few hours	An urgent counter or a same-day deadline can arrive between checks. Keep your normal alerts for anything time-critical.
No local files, and it can read but not change your Claude projects	Files on a broker's laptop are invisible to it. Shared deal folders need to live in a connected drive.
You cannot watch or take over its browser	For sites without a connector, you see the result, not the steps. Check anything it gathered from the web.
Personal Pro and Max plans in the US only	Team and Enterprise are not included yet, which shapes how a firm can use it. See the next section.
Background work uses your plan's limits	The morning brief and check-ins count against the same allowance as chat, so heavy users may hit limits sooner.

Licensed market data has its own rules regardless of the agent. CoStar's and CompStak's current terms restrict use of their data with outside AI tools, so do not point Duet at those platforms through its browser.

The safeguards, and what they leave to you

Anthropic published a safety, privacy, and security page for Duet, and several of its design choices are well suited to deal work:

• Approval shows everything. Before Duet sends a potentially sensitive message, pays, or deletes anything, it shows the action, the destination, the content, and every recipient. A separate automated check, built on the classifier from Claude Code's auto mode, judges whether the action matches what you asked for.
• The approval check runs outside the model. Anthropic says instructions hidden in a web page or an email cannot change the outcome of that check, which matters when the agent is reading inbound documents from people you do not know.
• Credentials stay out of reach. Duet never sees your passwords, cookies, or sign-in tokens. A proxy outside the agent's machine inserts them when a request is made.
• Some actions are off-limits even with approval. Duet will not trade securities, move money between accounts, or access someone else's account.
• A sensitive-information classifier checks outgoing messages. It blocks credentials, full card and bank account numbers, and government ID numbers, and asks for consent before sharing other private information. Anthropic says it "will occasionally miss something or flag a harmless message."

Two details deserve attention. First, disconnecting an app stops new access immediately, but what Duet already learned stays in its memory until you reset it in the app's settings. If a broker connects a client's shared folder by mistake, disconnecting is not enough. Second, some steps can be set to "don't ask me again." For anything addressed to a client, landlord, tenant, lender, or opposing counsel, do not use that setting. We set out a fuller framework for this in AI agent permissions and governance.

What a firm should settle first

Duet is on personal plans, and that is the decision point for most firms. Anthropic groups Pro and Max with its consumer products, which have their own data terms, separate from the commercial terms a firm signs for a Claude for Work workspace. A broker paying for their own Max plan is on consumer terms, whatever the firm assumes. We compare those terms plan by plan in what happens to data you send to an AI model.

Before anyone connects a deal inbox, a firm should decide:

1. Who may use it during the preview. Some firms will allow it only for a principal's own pipeline, others only on test accounts, others not at all until Team or Enterprise support arrives.
2. Which accounts it may connect. A personal Gmail with prospecting threads is a different risk from a shared drive full of client leases. Write the rule down in your AI acceptable use policy.
3. What always needs approval. At a minimum: every outbound message to someone outside the firm, every signature request, and every deletion.
4. What clients have agreed to. Some institutional clients and capital partners restrict which AI tools may touch their information. Their terms decide the question for their deals.

That is a decision for your firm's leadership and counsel, not for the agent. The answer may well be to wait for the business version and use the preview to learn the workflows in the meantime.

How Duet compares with Grok Bot and ChatGPT Dots

Duet arrives in a crowded field. TechCrunch lists Meta Muse, OpenAI's Dots, and Grok Bot among its rivals, and all of them pair an agent with its own computer and connected apps. For a brokerage team the meaningful differences are practical:

• Duet works in one main thread with topic channels that share memory, uses your existing Claude skills and connections, and runs its approval check outside the model. It cannot show its browser in the preview.
• Grok Bot uses named bots with roles and offers browser viewing and takeover, and its live search across X suits tracking public developments in a market. We cover it in Grok for commercial real estate.
• ChatGPT Dots coordinates ongoing work and also lets you inspect and take over its browser.

As with chat assistants, the choice usually comes down to which vendor your firm has approved and which systems it connects to. For a team on Microsoft 365, that alone may rule Duet out today.

Where to start

If you have a Pro or Max plan, join the waitlist and start with the quiet-thread chaser on your own prospecting pipeline, with every outbound message set to require approval. Run it for two weeks and count what it caught that you would have missed. That number tells you whether it earns a place in the team's workflow.

If you lead a team, set the rules before anyone connects a deal inbox, and plan the firm-wide version around Team or Enterprise support when Anthropic offers it. We build these workflows on Claude, ChatGPT, Grok, and Copilot, depending on what a firm runs. If you want help mapping where an always-on agent fits your team, you can get in touch.

Common questions

What is Claude Duet?

Claude Duet is a standalone app from Anthropic, on iOS, Android, and claude.ai, that works as a proactive agent. Anthropic describes it as flagging what needs your attention, completing tasks you ask for, continuing to work when you step away, and checking with you before it acts on your behalf. It was released as a research preview on October 21, 2026, and runs on Claude Opus 5.5.

Who can use Claude Duet?

As of October 2026, US subscribers on Claude Pro or Max who join the waitlist and receive an invitation. Anthropic says Team and Enterprise plans are not included yet. During the preview it costs nothing extra, but its background checks and tasks count toward the plan's usage limits.

Does Claude Duet work with Outlook and Microsoft 365?

Not yet. Anthropic's getting-started guide says Microsoft 365 is not available in Duet, even though the main Claude apps have a Microsoft 365 connector. Duet does connect to Gmail, Google Calendar, Google Drive, Slack (with limits), HubSpot, Docusign, Calendly, and QuickBooks, among others.

Can Claude Duet send emails to clients on its own?

It can send email from a connected account, but only after you approve it. Anthropic says Duet shows the action, the destination, every recipient, and the content before it sends a potentially sensitive message, pays, or deletes anything, and waits for your approval. A broker should keep that approval on for anything going to a client, a landlord, or a counterparty.

Is it safe to put client deal information into Claude Duet?

Treat it as a personal plan, because it is one. Pro and Max are consumer plans under Anthropic's consumer data terms, not the commercial terms a firm signs for Claude for Work. Until Duet reaches Team or Enterprise, confidential client documents should stay in a workspace the firm administers, and the decision belongs to your firm's leadership and counsel.

How is Claude Duet different from Grok Bot or ChatGPT Dots?

All three are always-on agents with their own computer environment. Duet's distinguishing points in the preview are its approval checks that run outside the model, its single main thread with topic channels, and its use of your existing Claude memory, skills, and connected apps. Unlike the others, it cannot yet show you its browser or let you take it over.