Compare humanoids
Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.
01
Pick robots
52 humanoidsNo height, mass, DOF or payload figure is sourced for both Atlas (hydraulic) and Z-Bot (Zeroth Bot) yet. Z-Bot (Zeroth Bot) lists at $999; Atlas (hydraulic) is not for sale. Openness score: Atlas (hydraulic) 0, Z-Bot (Zeroth Bot) 90 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM, SIM, FW and SW. Availability: Atlas (hydraulic) research only, Z-Bot (Zeroth Bot) diy build.
| Field | Boston DynamicsBoston Atlas (hydraulic) | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Boston Dynamics | K-Scale Labs | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Discontinued | Orphaned | |
| Availability (differs) | Research only | DIY build | |
| Country | United States | United States | |
| Year (differs) | 2013 | 2025 | |
| Specifications | |||
| Height | —unsourced | 46cm | |
| Mass | —unsourced | —unsourced | |
| Degrees of freedom | —unsourced | 18 | |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | Not for sale | 999USD | |
| Actuators (differs) | Hydraulic | 18 servo motors | |
| Compute | —unsourced | —unsourced | |
| Sensors | —unsourced | cameras, IMU (per press) | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 0/ 100 | 90/ 100 | −90 |
| CAD (25) (differs) | not public | public | |
| Bill of materials (20) (differs) | not public | public | |
| Sim model (URDF/MJCF) (20) (differs) | not public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) (differs) | not public | public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L0 | L1 | |
| Sources (differs) | 2 | 3 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
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