Go2 Pro
$2,800
- Weight
- 15 kg
- Payload
- 8–10 kg
- Development access
- Not on Pro
Meet the Zeronce Quad.
An American-built quadruped.
From $9,999 · Open Source SDK
Preparing the hardware01 / 06Climb
Preparing the hardwareDriven
by planets.
One sun. Three planets. The motor turns the sun gear. The planets roll inside a fixed ring, turning the carrier that drives the joint.
12:1Single-stage reduction
The Quad gearset, opened up to show the motion. Housing and upper carrier omitted. Specifications subject to change.
Some things are worth building here.
Made in the USA
American-built hardware.
From the mechanism to the machine.
Quad in the field.
How Quad
compares.
Quad
From $9,999
- Weight
- 22.45 kg
- Payload
- 25 kg
- Development access
- Open Source SDK
Spot
Contact sales
- Weight
- 33.8 kg
- Payload
- 20.43 kg
- Development access
- SDK available
Go2 Pro$2,800 | QuadFrom $9,999 | SpotContact sales |
|---|---|---|
| Weight | ||
| 15 kg | 22.45 kg | 33.8 kg |
| Payload | ||
| 8–10 kg | 25 kg | 20.43 kg |
| Development access | ||
| Not on Pro | Open Source SDK | SDK available |
Sources & specification notes
Diagram dimensions are length × height. Quad is shown at its nominal dimensions of 98 cm × 51 cm; its width is 43.89 cm. Standing height varies with leg pose. The outline uses the October 2026 planetary-drive CAD. Go2 and Spot outlines are scaled to their published standing dimensions; Spot uses its 61 cm default walking height. Model credits and licenses.
Quad specifications include a 25 kg payload capacity. Quad is in development; the motion scenes are simulations. Quad dimensions, gear reductions, actuation method, and other specifications are subject to change.
Quad weighs 22.45 kg. Go2 Pro and Spot weights include their batteries, as listed by their manufacturers: Go2 Pro weighs 15 kg, and Spot weighs 33.8 kg.
Go2 Pro specifications: price excludes tax and freight. Development access differs by trim; EDU supports secondary development.
Spot specifications: 20.43 kg is the current maximum recommended payload; placement can affect performance. Payload ratings are not measured under identical conditions.
Spot SDK is available under Boston Dynamics’ license. Joint-level control requires a separate license. Contact Boston Dynamics for pricing.