Meta's Muse gains Spaces: AI-built app-like experiences that update themselves

What Spaces are

Meta has launched Spaces, a new feature of its Muse AI assistant that turns plain-language descriptions into custom, app-like experiences. According to The Verge, Muse can build things like a shopping hub, a school dashboard, a music tracker or a trivia game, and users then interact with these creations directly inside the Muse app.

The workflow is conversational: you describe what you want, Muse builds it, and you keep refining it by asking for changes. The Verge reports that once a space exists, users can work with it by checking items off, adding notes and making edits. TechCrunch describes spaces as breakout conversations organized around a particular project — a vacation plan, a recipe collection, a wedding planner or a holiday gift tracker — each living as its own entry in the Muse sidebar.

Spaces are not pinned to the sidebar, either. The Verge says users can move a space into the main tab and schedule when it appears, with Meta's example being a weekly planner kept up front during the workweek and swapped out for weekend plans on Saturday.

How they stay current

The most consequential part of the feature is the connection to third-party apps. TechCrunch quotes Meta saying that once you connect the apps you use, spaces "keep themselves up to date in the background, so new concert dates, price changes, or savings progress show up without you having to ask."

Meta CEO Mark Zuckerberg showcased the feature in a post on X, according to TechCrunch, listing spaces he had built himself: a barbecue game, an event tracker and a home control dashboard.

Rollout and the model behind it

The Verge reports that Spaces is rolling out to all Muse users alongside a specialized version of Meta's Muse Wonder AI model. Sharing spaces with other users and collaborating on them is under exploration, but for now spaces are single-user.

A dev.to analysis adds context on the model: Muse Wonder was announced on October 12 for developers, limited to a model API and Muse Code, with Meta saying it would power Muse experiences soon. Roughly 25 days later, it has arrived inside the consumer app.

Momentum and competition

Spaces is the second Muse feature Meta has shipped in two days. TechCrunch reports that on Thursday the company announced Muse Voice, which lets users video chat with their agent and give it verbal commands.

The pace reflects Muse's early traction. According to TechCrunch, Zuckerberg said on Meta's October earnings call that the agents had 10 million users in the United States and Canada, less than two months after they debuted in early September. A dev.to writer estimates that roughly a quarter of those users — about 2.5 million people — engage daily, though that figure is the author's own calculation from the reported numbers.

Meta is not alone in the space. TechCrunch notes that OpenAI's dots and SpaceXAI's Grokbot arrived with similarly cartoonish personas, making the agent experience layer a competitive frontier.

From conversations to artifacts

The dev.to analysis frames the deeper shift: the output of an assistant interaction is no longer just a reply, but a persistent artifact with its own update loop. A savings tracker that refreshes itself from a banking app is effectively a small application with a data pipeline, generated from a single sentence and maintained by the agent.

That framing also surfaces the open question. A wrong chat answer is visible immediately; a space with a stale price or incorrect date can sit there looking authoritative until someone notices. The dev.to writer points out that nothing in the announcement explains how a space shows its sources or when it last updated — and with no sharing yet, there is no second pair of eyes.

Why it matters

Spaces signals where consumer AI assistants are heading: away from one-off conversations and toward agents that build, own and maintain software on a user's behalf. If Muse's agent-built spaces catch on, the differentiator stops being the underlying model and becomes the quality of an assistant's app connections and data freshness — an area where Meta's distribution and integrations could compound quickly. The unresolved piece is trust: an agent that quietly maintains a dashboard in the background has to be verifiable in a way a chat reply never needed to be, and Meta has not yet said how it will handle that.