Poppy Humanoid vs Rainbow Robotics RB-Y1
Generated from the registry · revision 2026-09-26 · openness out of 100
Poppy Humanoid is 56 cm shorter (84 vs 140 cm) and 127.5 kg lighter (3.5 vs 131 kg) than Rainbow Robotics RB-Y1. Poppy Humanoid has 5 more degrees of freedom (25 vs 20) than Rainbow Robotics RB-Y1. Openness score: Poppy Humanoid 90, Rainbow Robotics RB-Y1 30 (of 100); only Poppy Humanoid publishes CAD, BOM and FW. Availability: Poppy Humanoid kit, Rainbow Robotics RB-Y1 buy.
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Side by side
■ rows differ| Field | Poppy Project (Inria Flowers)Poppy Humanoid | Rainbow RoboticsRainbow Robotics RB-Y1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Poppy Project (Inria Flowers) | Rainbow Robotics | |
| Class (differs) | Humanoid | Wheeled humanoid | |
| Status (differs) | Orphaned | Active | |
| Availability (differs) | Kit | Buy | |
| Country (differs) | France | South Korea | |
| Year | —unsourced | 2024 | |
| Specifications | |||
| Height (differs) | 84cm | 140cm | −56 cm (-40%) |
| Mass (differs) | 3.5kg | 131kg | −127.5 kg (-97%) |
| Degrees of freedom (differs) | 25 | 20 | +5 (+25%) |
| Payload | —unsourced | 3kg | |
| Top speed | —unsourced | 1.5m/s | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | 1,250Wh | |
| Price | —unsourced | —unsourced | |
| Actuators (differs) | Dynamixel: 19 MX-28AT, 4 MX-64AT, 2 AX-12A | Rainbow in-house joint modules | |
| Compute (differs) | Raspberry Pi (current kit version) | Dual-PC (real-time robot PC + user PC with ROS 2) | |
| Sensors | —unsourced | Built-in wrist force/torque sensors (v1.2); optional camera | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 90/ 100 | 30/ 100 | +60 |
| CAD (25) (differs) | public | not public | |
| Bill of materials (20) (differs) | public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | public | not public | |
| Software (10) | public | public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L1 | L2 | |
| Sources (differs) | 6 | 2 | |
| Last checked (differs) | 2026-09-25 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Poppy Humanoid, Rainbow Robotics RB-Y1.
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