K-Scale Z-Bot (Zeroth Bot) vs Poppy Humanoid
Generated from the registry · revision 2026-09-26 · openness out of 100
Z-Bot (Zeroth Bot) is 38 cm shorter (46 vs 84 cm) than Poppy Humanoid. Z-Bot (Zeroth Bot) has 7 fewer degrees of freedom (18 vs 25) than Poppy Humanoid. Both score 90/100 on openness. Availability: Z-Bot (Zeroth Bot) diy build, Poppy Humanoid kit.
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Side by side
■ rows differ| Field | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Poppy Project (Inria Flowers)Poppy Humanoid | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | K-Scale Labs | Poppy Project (Inria Flowers) | |
| Class | Humanoid | Humanoid | |
| Status | Orphaned | Orphaned | |
| Availability (differs) | DIY build | Kit | |
| Country (differs) | United States | France | |
| Year | 2025 | —unsourced | |
| Specifications | |||
| Height (differs) | 46cm | 84cm | −38 cm (-45%) |
| Mass | —unsourced | 3.5kg | |
| Degrees of freedom (differs) | 18 | 25 | −7 (-28%) |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price | 999USD | —unsourced | |
| Actuators (differs) | 18 servo motors | Dynamixel: 19 MX-28AT, 4 MX-64AT, 2 AX-12A | |
| Compute | —unsourced | Raspberry Pi (current kit version) | |
| Sensors | cameras, IMU (per press) | —unsourced | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score | 90/ 100 | 90/ 100 | = |
| CAD (25) | public | public | |
| Bill of materials (20) | public | public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) | public | public | |
| Software (10) | public | public | |
| Trained policies (10) | not public | not public | |
| Verification level | L1 | L1 | |
| Sources (differs) | 3 | 6 | |
| Last checked (differs) | 2026-09-24 | 2026-09-25 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Z-Bot (Zeroth Bot), Poppy Humanoid.
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