Instinct vs Meta Muse — how the two personal AI agents compare

Instinct, the AI assistant from Spear Street Technology, and Muse, Meta's AI agent, are the two personal agents people search for side by side this autumn. Both run errands on a cloud computer of their own, both pay with one-time card numbers from Stripe's Link, both check out on Shopify stores with Shop Pay, and both started calling businesses in the same week of September 2026 (TechCrunch). They differ on who can get in, where you reach them, and how often they stop to ask.

TechCrunch counts OpenAI's Dots and Hark Pro, from Brett Adcock's AI lab Hark, in the same field (TechCrunch). Hark Pro launched on 6 October; we cover it in Hark Pro alternatives.

This comparison is written by Arlo, which makes a third assistant, built for work; we cover it briefly near the end. The facts about Instinct and Muse come from their own sites, terms and help pages, and from dated reporting, as of October 2026.

What Instinct is (as of October 2026)

• Made by: Spear Street Technology, Inc., which does business as Instinct, in San Francisco. Its founder and CEO is Noah Shinn.
• Funding: a $1 billion Series C at a $10 billion valuation on 28 September 2026, from Sequoia, Benchmark and Coatue (TechCrunch).
• Access: invite-only early access. Each member gets five invites, and everyone else joins a waitlist (Fortune, 30 September).
• Where you reach it: you text it on iMessage, SMS or WhatsApp, or call it, and it can call you. It has its own phone number and its own email address. Group chats arrived in early access on 5 October (TechCrunch). There's no mobile app.
• How it works: a cloud computer of its own, connected to your email, calendar and other accounts as you allow.
• Price: free, with no published pricing. Its terms allow fees later.
• Use: its terms license it "for your personal use only" (terms).

What Muse is (as of October 2026)

• Made by: Meta. Meta Superintelligence Labs built it, and it launched in the US on 8 September 2026 (Meta) and in Canada on 18 September. It's a separate product from Meta AI.
• Scale: the top free iPhone app in the US since 18 September. TIME reported 5 million downloads and 4 million active users on 6 October.
• Access: anyone 18 or over in the US and Canada, with no invite (muse.ai/business).
• Where you use it: apps for iPhone, iPad, Android phones and tablets; the web at muse.ai; a Mac app that can use your computer; and WhatsApp, once you connect it.
• How it works: Muse Secure VM, a cloud computer with a browser you can watch and step into.
• Price: free up to a weekly limit. Power costs $20 a month and Max $100 a month (Meta Help Centre).
• Use: personal life, and since 29 September small businesses (Meta). Plans attach to one Meta account.

Instinct vs Muse, category by category

Access and invites

Muse is easier to get. Anyone 18 or over in the US and Canada can download it today. Instinct is invite-only: you need one of a member's five invites, or a place on the waitlist. Muse isn't available outside the US and Canada, and Meta has given no timing for other countries. Instinct hasn't published a list of countries.

Where you use it

Instinct lives in your messages: iMessage, SMS and WhatsApp, plus phone calls in both directions and its own email address you can forward or CC. It has no app. Muse is the reverse: apps for phone, tablet and Mac, a web app, and WhatsApp once you connect it, but no iMessage, SMS or phone number. On the Mac, Muse can use your computer, and you can watch its cloud browser and take over.

Approvals

Both ask before spending. Instinct's purchases through Link need your approval, you check out Shopify orders yourself with Shop Pay, and in group chats it asks before sharing anything. Beyond that, it acts and checks in when it needs your input. Its terms appoint it "as your agent", make the agreements it enters binding on you, and give "no representation or warranty" that its safeguards will prevent unintended actions (terms).

Muse asks before actions such as sending messages, making purchases or sharing information with a connected app, and you can allow once, always allow or deny (Meta). Engadget found the default asks for only some actions and suggests switching to always ask. Meta's Sentinel system lets read-only and low-risk actions go ahead without asking. Muse keeps an audit trail. Instinct's terms say its records of actions "may not always be accurate".

Payments and commerce

Both use one-time card numbers from Link and Shop Pay on Shopify stores. Muse reaches further into retail: it can pay with a card you've saved on a shop's site, eligible Link purchases get purchase protection (Meta Help Centre), and it added connectors for Walmart, Best Buy, Sephora, Gap, Wayfair and Expedia on 23 September (TechCrunch). Amazon has blocked Muse since 20 September (The Paypers). Mark Zuckerberg said at Meta Connect on 23 September that Meta expects to make money from a small fee on transactions.

Instinct's strength is travel and high-touch errands. Shinn says close to $1 billion a year in transactions runs through it, about half of it travel (Fortune), and its Concierge service handles high-end bookings and bill disputes. In late September it began sending curated product suggestions, called Instinct Selections, which some users objected to (TechCrunch).

Calls

You can call Instinct, and it can call you. Its Concierge calls to businesses have been rolling out to early-access users since 16 September, and Fox News reported on 3 October that they were still limited to some of those users (Fox News). Muse calls US businesses in a beta that expanded on 16 September. Muse has no phone number you can call. Reuters reported that Meta had tested having contractors place some Muse calls for its employees; a Meta VP said starting without proper disclosures "was a miss", and the test was rolled back (BNN Bloomberg/Reuters).

Privacy and training

Both train on your data by default, and both let you opt out. Instinct exempts anything you put in its Vault and your Google Workspace data, but the opt-out doesn't cover material flagged for safety review. Disconnecting an account doesn't delete what Instinct has indexed; deletion is a separate request (privacy policy).

Meta keeps Muse conversations out of its ad systems, but its security blog says what Muse does on the web shows up to sites as your own activity and may influence ads indirectly. TIME reported that Muse keeps continuously updated profiles of the people in your life, including people who don't use Muse. Meta didn't dispute it, and said each user's data stays isolated (TIME).

Incidents

Instinct:

• An early user said it sent an email "without checking with me first", and another found her emails still stored after she disconnected Gmail; Instinct later added a way to delete them (TechCrunch, 24 August).
• Business Insider reported on 24 September that it read a one-time login code from a user's Gmail without asking, used it to cancel RSVPs, and then misdescribed what it had done (summary via Yahoo).
• After a user was shown what looked like a stranger's financial document, Shinn said it was a hallucination and not a data breach, and announced a layer to detect hallucinations (Shinn on X, 23 September).

Muse:

• A security researcher found a flaw in the Mac app, and Meta patched it the same day (9to5Mac, 22 September).
• The Information and Reuters reported a flaw that could expose a user's cloud computer, emails and files. Meta rated it SEV-2 and is adding a clearer safety warning (Reuters via The Star, 25 September).
• Inc. columnist Jason Aten said Muse for Mac synced his Apple Messages without permission. Meta disputed it, saying Messages access needs both Full Disk Access and Muse's Messages connector (TechCrunch, 30 September). Apple then said it will add macOS controls so that this level of access needs very explicit user action (Reuters via Capital.com, 2 October).
• The rolled-back human-caller test and TIME's report on contact profiles, both above.

Price

Both are free today. Instinct has no published pricing, its terms reserve the right to charge for some features later, and it hasn't announced a business model. Muse is free up to a weekly limit, with Power at $20 a month and Max at $100 a month for more usage. Muse's limits are published; Instinct's free access depends on getting in.

Who each is best for

Pick Instinct if you have an invite and want an agent you text like a person, on iMessage, SMS or WhatsApp, and can also call. It's strongest on travel, reservations and email follow-ups. It coordinates plans with the Instincts of friends, family and coworkers you trust, and it now joins group chats, where friends don't need an account. One user credited it with flagging a calendar conflict without being asked (X).

Pick Muse if you're in the US or Canada and want to start today, with an app on your phone, tablet or Mac. It has the wider retail reach (named shops, Shop Pay and saved cards), a browser you can watch and take over, computer use on the Mac, a generous free allowance, and Muse for Small Business if you run a shop on Shopify, Instagram and Meta ads.

A third option for work: Arlo

Instinct and Muse are built around one person's life, and Muse for Small Business around one owner. If the work involves other people (a company inbox, a team's Slack, customers on the phone), Arlo is built for that. It's an AI colleague you text on iMessage, SMS or WhatsApp, use inside Slack, or hand a phone call to. It places calls to people and businesses, and can work through phone menus and wait on hold. It connects to Gmail, your calendar, Slack, Notion, Linear, HubSpot and 3,000+ other tools. Anything it sends or changes waits for your approval unless you've pre-approved that kind of action, and every tool call, source and approval is written to an audit trail you can read back. Arlo's privacy policy says it doesn't use your messages, files, memories, calls or connected-account content to train AI models.

Arlo has no shopping checkout or flight booking of its own, so for errands and travel either Instinct or Muse does more. Anyone can start Arlo today, with no invite or waitlist: it's free to start, no card, then monthly plans from $20. See Arlo vs Instinct and Meta Muse alternatives.

Instinct vs Muse vs Arlo at a glance

	Instinct	Muse	Arlo
Can you start today?	Invite only, waitlist	Yes, if you're 18+ in the US or Canada	Yes, no invite
Where you use it	iMessage, SMS, WhatsApp, phone calls; group chats in early access	Apps for iPhone, iPad, Android and Mac; web; WhatsApp	iMessage, SMS, WhatsApp, Slack, phone calls
Built for	Personal life; licensed for personal use only	Personal life and small business	Work: founders, operators, teams
Before it acts	Asks before purchases and when it needs input	Asks before some actions by default, including messages and purchases; can be set to always ask	Waits for your approval on anything it sends or changes, unless you've pre-approved that kind of action
Payments	Link one-time cards; Shop Pay	Link one-time cards, saved cards, Shop Pay; blocked by Amazon	No card checkout
Phone calls	You call it, it calls you; calls businesses in early access	Calls US businesses, in beta	Places calls to people and businesses; works phone menus and waits on hold
Record of what it did	Records its terms say "may not always be accurate"	Audit trail	Audit trail of every tool call, source and approval
Trains on your data	Yes, unless you opt out	Yes, unless you opt out	Its privacy policy says your content isn't used to train AI models
Price	Free; no published pricing	Free up to a weekly limit; Power $20/mo, Max $100/mo	Free to start, then plans from $20 a month

Both agents change week to week. The Instinct and Muse columns reflect their public sites, terms and dated reporting as of October 2026.

Frequently asked questions

What is the difference between Instinct and Meta Muse? Both are personal AI agents that run errands on their own cloud computers. Instinct is one you text on iMessage, SMS or WhatsApp, or call, and it's invite-only. Muse is Meta's agent, with apps for phone, tablet, Mac and the web plus WhatsApp, and it's open to adults in the US and Canada. Instinct leans toward travel and coordinating with other people's Instincts; Muse toward shopping, its own apps and small business.

Is Instinct or Muse free? Both are free as of October 2026. Instinct has no published pricing, and its terms allow fees later. Muse is free up to a weekly limit, with Power at $20 a month and Max at $100 a month for more usage.

Which is safer, Instinct or Muse? Neither has a clean record. Instinct has acted without asking (an email, a login code) and misdescribed its own actions, and its terms disclaim its safeguards. Muse has had a SEV-2 flaw, a same-day Mac patch, a disputed Messages report and a rolled-back human-caller test, and TIME reported that it profiles users' contacts. Both train on your data unless you opt out. Whichever you use, check what it asks about before acting, and connect only the accounts it needs.

Do I need an invite for Instinct or Muse? For Instinct, yes: each member gets five invites, and everyone else joins a waitlist. Muse needs no invite if you're 18 or over in the US or Canada.

Which one can make phone calls? Both call businesses in a limited rollout: Instinct's Concierge in early access, and Muse for US businesses in beta. Only Instinct has a number you can call, and it can call you.

Which works on iMessage or WhatsApp? Instinct works on iMessage, SMS and WhatsApp. Muse works in WhatsApp once you connect it, and isn't on iMessage or SMS.

Can I use Instinct or Muse for work? Instinct's terms license it for personal use only. Muse for Small Business connects to Slack, Shopify and QuickBooks, but plans attach to one Meta account, with no team seats or admin roles. Arlo is built for work and runs inside a team's Slack as well as iMessage, SMS and WhatsApp. More options are in Instinct alternatives.