Silicon Valley’s new humanoid robot significantly undercuts Chinese rivals.
The San Francisco startup Rotaku just introduced Domo, its compact humanoid robot for developers. On paper, Domo looks less like a Unitree G1 rival and more like a lower-cost alternative to the K1 from Beijing-based Booster Robotics, but about half the price.
Standing 90 cm (just under 3 feet), the humanoid weighs 20 kg (44 lbs). The bipedal robot boasts a reported 23 degrees of freedom (DoF) and feautures high-power motors that deliver up to 110 Nm of torque. It operates for about two hours on a single charge. It’s priced starting at $2,999, while a larger and more advanced model is closer to $10,000.
The startup has started taking reservations but says the first batches are extremely limited. Reservations require a $99 deposit. Optional add-ons include a dual-arm teleoperation kit ($1,299), an NVIDIA Jetson Orin NX AI computer ($1,280), a whole-body teleoperation kit ($1,799), dexterous hands ($2,500), a LiDAR navigation kit ($1,199), an extra battery ($499), and a developer policy training package ($1,499).
The higher-end model, called the Domo Plus, stands 130 cm (4 feet 3 inches) and weighs 35 kg (77 lbs). It has 25 moving joints and has a similar battery life as the smaller Domo.
Rotaku is associated with a legal entity called ZenAI International Corp., which was incorporated in Delaware and registered in California in 2025. The startup says it’s been working on its first prototypes for over a year. It recently reported securing seed funding but did not disclose an amount.