Zuckerberg says Muse hit 10 million users with product-market fit

An AI consumer app with real daily use changes the question for anyone selling to one. Meta told its Q3 2026 earnings call on 21 October that its Muse agent passed 10 million users. One in four of those users opens Muse every day. More than a quarter of users who shop through it place orders averaging over 200 dollars. The numbers were reported by TechCrunch, from the earnings call itself.

Mark Zuckerberg said on the call that Muse has reached "product-market fit".

He added that Plaid has told Meta it has not seen activity like this on any other service.

Plaid is the payments connector behind Muse's shopping.

What Meta claimed

Zuckerberg's forecast is the strong line. He said Muse will one day make more revenue per user than Facebook, Instagram, WhatsApp and Messenger combined. Those four apps today bring in several hundred dollars per user per year, by Meta's own figures.

On the cost side, Zuckerberg said Meta is building out capacity to serve more than a billion people. He gave the timeframe as the next few years. He said Meta expects "to improve its cost efficiency by more than 10x".

The baseline for that 10x is not stated. It is Meta's forecast of its own next year, not a measured result today.

What the numbers rest on

Two of the figures are counts Meta owns and can therefore state. User count and daily open rate come from Meta's own apps. The 200 dollar order figure comes from Plaid, which handles payments inside Muse. TechCrunch reports Meta's wording of the Plaid line, not Plaid's own release.

The product-market-fit claim is a judgement, not a measurement. Zuckerberg's own definition of it was not shared on the call. The 10x compute cost efficiency figure is a target, not an outcome. The revenue-per-user forecast is Meta's own, with no stated timeline.

What changes for a company that sells online

A consumer AI agent with real reach shifts who shows up at a checkout. The visitor is no longer a person browsing a product page. It is a model acting on behalf of a user. The model carries a payment token through Plaid. It decides on fit from a short list of candidate products. A site that reads only to a human now reads to two readers, and the second one does not scroll.

A reader selling a product needs to know what their category looks like to that second reader. The second reader is an agent working on behalf of a buyer with 200 dollars in Plaid. Nothing in Meta's numbers answers that question. They say the channel exists at a size worth planning for.

Source

Meta says Muse has over 10M users, with shopping a top activity, TechCrunch, reporting Meta's Q3 2026 earnings call.