Build1 publisher2 min readPublished
Zuckerberg expects Muse to collect a small cut from the businesses it transacts with
Meta is seeding its new personal agent with a large free-compute allowance and expects to be paid later by the businesses whose sales the agent completes. The fee rate, merchant terms and rollout timing remain undefined.
The Engineer · Build desk
What happened
- Meta launched Muse in the United States on September 8th, running on a dedicated cloud computer called Muse Secure VM that can browse sites, fill in forms, send emails, book travel and complete purchases.
- Zuckerberg said the fee for that commerce may come from the businesses involved in the transaction rather than directly from the user who asked for it.
- The free tier includes up to 100 million tokens per week, and Meta sells Power and Maximum subscriptions at $20 and $100 per month for heavier use.
- A separate Sentinel agent reviews Muse's attempts to reach the internet, Muse asks for approval before sending an email or making a purchase, and users can inspect an audit trail and revoke connections.
- Meta plans a Confidential VM later in 2026, encrypted with a user-held key that the company says would keep even its own systems out of the contents.
Compiled by The EngineerSomething wrong?How this is made
Why it matters
- cost Meta pays the compute bill for the seeding period and collects nothing until some business agrees to a fee, so adoption is funded well ahead of the revenue that is supposed to justify it.
- decision Anyone running a checkout has to decide how to treat agent-placed orders before Meta has published a rate or terms to price that decision against.
- exposure The revenue depends on users wiring Muse into email, calendars, accounts and payment flows. Each granted connection is the thing Meta is monetizing.
- contradiction Zuckerberg says Muse could connect to Meta's advertising systems and help operate a business, while Meta says Muse conversations and virtual-machine data are not shared with those same systems.
The weekly allowance is a ceiling on compute. What Muse spends depends on how long it reasons, how many sites it opens and whether it repeats a step that failed [7]. Meta has not said what 100 million tokens buys in bookings, purchases or business workflows [8]. Fifty-two weeks of 100 million tokens comes to 5.2 billion tokens per user per year [11].
In the September 8 interview with Alex Heath, Zuckerberg said Meta could eventually take "a very small cut" when Muse helps users make money, save money or complete purchases [3]. The cut has to attach to a specific event in the payment path. Muse checks out through Stripe's Link, and the integration generates a one-time card number so that neither Muse nor the merchant receives the user's underlying card details [14]. The seller's records show a card. For Meta to charge on that sale, the merchant has to be inside an arrangement that identifies which orders Muse produced, and Zuckerberg left the fee rate and merchant terms undefined, along with how merchant payments would interact with Muse's recommendations [13].
A commerce cut keeps the same payer as an ad and moves the trigger from the click to the purchase. Advertising brought in $59.36 billion of Meta's $60.80 billion in second-quarter 2026 revenue, about 98 percent of the total [9][10]. Zuckerberg told investors in July that Meta expected some agent products to adopt results-based pricing, with businesses paying when Meta produces an outcome [12].
Zuckerberg has been testing Muse on organizing baking sessions with his daughter and reviewing footage from his mixed martial arts training [22]. Those are not the workloads that stress a checkout integration. His product thesis is that Muse maintains long-running projects and keeps working after the user closes the app instead of waiting for another prompt [23]. The approval prompt before a purchase cuts across that [15]. Every completed sale needs a user present to approve it.
The business-model reading came from outside Meta. Baselayer co-founder Jonathan Awad posted a September 11 thread tying the free allowance to Meta's transaction ambitions, and runtimewire reports that the clip he shared matches Zuckerberg's full interview remarks [20]. runtimewire's own framing is that transaction fees could turn Meta into a toll collector for AI-directed commerce [21]. Zuckerberg's stated version is a small cut on an unspecified subset of transactions [3][13].
What to watch
- Published merchant terms or a fee rate for Muse commerce. Either would show whether sellers opt in or are billed by default.
- Whether the Confidential VM ships in 2026 with the user-held key Meta describes, and whether purchase records sit inside it.
- Whether Meta relaxes the per-purchase approval prompt for repeat merchants or standing budgets.