I watched a humanoid robot clean my apartment. It felt like a taste of the future.

When an X post surfaced a new humanoid-robot cleaning service in San Francisco, I signed up for the waitlist without telling Tau Robotics I was a journalist. Last month a four-and-a-half-foot-tall machine arrived in a blue minivan, helped out of the van by cofounder Cornelia Weinzierl and another employee, and set about my apartment for an hour.

Tau's stated long-term goal is fully autonomous cleaning, but today's robots are piloted remotely from company headquarters, with operators watching through cameras mounted in the robots' heads and wrists. The work itself is the byproduct: every counter successfully wiped and T-shirt folded becomes training data for the models that will power later, more independent versions. Because that data is so valuable to the company, cleaning is priced cheaply — $30 for an hour with one robot when I booked, now $60 for a weekly cleaning with two robots or $100 for a one-time visit.

The hardware reflects that pragmatism. A 3D-printed head with antennae keeps the robot in contact with Tau's headquarters, and the hands are 3D-printed claws because more humanlike alternatives proved insufficiently durable; claws, it turns out, handle most cleaning tasks well. Mine wore a Tau Robotics shirt and grippy socks so it wouldn't scratch hardwood floors. Stairs remain a real obstacle — the machine climbed the eight steps to my building's front door as if drunk, each gain followed by a stumbling backward stagger, though it never entirely lost its footing. Weinzierl later explained the strange walking comes from remote operation and signal transmission.

The open questions are whether that data advantage converts into genuine autonomy, and whether the economics hold up when the robots are thorough but slow enough that doing the cleaning yourself is the better use of an hour. If Tau succeeds, its machines could join Waymos as San Francisco street spectacle; the one that visited my building was already drawing attention before it reached the stairs.