A humanoid robot can now scrub a toilet and mop a floor in a San Francisco home, but it still depends heavily on people behind the scenes. Tau Robotics is using a cleaning service to gather real-world examples that may help its robots work more independently over time.
Today’s service depends on human guidance
Tau’s robots are operated remotely by people who watch through cameras mounted in the robots’ heads and wrists. For tasks such as making a bed or folding laundry, a human pilot performs the movements and sensors send them to the robot to copy. Tau calls this kinematic guidance, and the resulting examples are valuable training data.
Some jobs, including vacuuming and mopping, can already be completed without human help, according to cofounder Cornelia Weinzierl. But the wider goal of autonomous home cleaning remains a work in progress. The company has completed only a couple hundred cleanings, and it expects to need substantial data to teach robots the many varied tasks involved in cleaning an apartment.
A robot that can clean, slowly
The robots are four-and-a-half feet tall, with 3D-printed heads and claw-like hands. The claws are less humanlike than alternatives, but Tau says the more humanlike options are not durable enough. During a visit, the robot wore a Tau Robotics shirt and grippy socks intended to protect hardwood floors.
On one visit, the robot struggled to climb the eight stairs to the apartment building. It moved awkwardly and sometimes staggered backward, though it never fully lost its footing. A carpeted staircase proved too difficult, and Weinzierl carried it up the remaining steps.
The first cleaning ended early after the robot stalled. At first, the heat seemed to be the problem, but Weinzierl later learned that the hot weather had shut down the equipment used by the remote controller to monitor the robot. Without that remote support, the robot could not continue.
Small successes and visible limits
A later visit went more smoothly. The robot reached the apartment with less assistance and cleaned the kitchen, although it avoided the stove. It also tackled the toilet, a task the visitor dreaded. When the head fell off the cleaning wand three times, the robot managed to reattach it each time by probing with the handle until it found the right angle.
Other actions showed how unfinished the system remains. The robot left taps dripping, knocked over a closed bottle of olive oil and could not right an air purifier it had toppled. These errors came alongside useful work: it wiped counters and handled a difficult chore. The result was a service that could be both helpful and uneven.
Remote operation also brings coordination challenges. Weinzierl said a short signal delay can affect how the robot walks, and that the company spends significant effort adjusting timing and connectivity. The machine’s progress therefore depends on more than its physical abilities: the communications link and the pilot’s monitoring equipment matter too.
What the experiment could mean
At the time of the original booking, Tau offered an hourlong cleaning with one robot for $30. The service is now described as $60 per weekly cleaning with two robots, or $100 for a one-time visit. The robots are thorough but slow, so the time spent watching them may outweigh the convenience for some customers.
The company is collecting data as it provides the service, which creates a tradeoff for customers: they receive a cleaning, while the robot’s experience may help train future systems. The article also points to the value of that data for Tau and raises a privacy consideration for customers.
If companies succeed in making cleaning robots autonomous and inexpensive, the work could affect people who earn a living cleaning homes. The source also notes that the United States is a long way from policies to support people displaced by AI. Weinzierl argues that cleaning jobs can involve injury risk and high turnover, and says the company is considering other physically challenging or dangerous work, including mold remediation and home health care.
For now, Tau’s robots offer a practical but limited preview of household automation. They can complete real chores, yet still rely on human pilots, technical support and training data. Their ability to clean a home is already striking; turning that ability into reliable independence remains the larger challenge.