UC Berkeley Humanoid vs ROBOTIS OP3
Generated from the registry · revision 2026-09-26 · openness out of 100
Berkeley Humanoid is 34 cm taller (85 vs 51 cm) and 12.5 kg heavier (16 vs 3.5 kg) than ROBOTIS OP3. Berkeley Humanoid has 8 fewer degrees of freedom (12 vs 20) than ROBOTIS OP3. Openness score: Berkeley Humanoid 30, ROBOTIS OP3 45 (of 100); only ROBOTIS OP3 publishes FW. Availability: Berkeley Humanoid research only, ROBOTIS OP3 buy.
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Side by side
■ rows differ| Field | UC Berkeley Hybrid Robotics LabUC Berkeley Humanoid | ROBOTISROBOTIS OP3 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | UC Berkeley Hybrid Robotics Lab | ROBOTIS | |
| Class (differs) | Biped | Humanoid | |
| Status (differs) | Research | Active | |
| Availability (differs) | Research only | Buy | |
| Country (differs) | United States | South Korea | |
| Year | 2024 | —unsourced | |
| Specifications | |||
| Height (differs) | 85cm | 51cm | +34 cm (+67%) |
| Mass (differs) | 16kg | 3.5kg | +12.5 kg (+357%) |
| Degrees of freedom (differs) | 12 | 20 | −8 (-40%) |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | 36.6Wh | |
| Price | Not for sale | —unsourced | |
| Actuators (differs) | custom 5013/8513/8518/10413 motors, 9:1 planetary, EtherCAT | 20x Dynamixel XM430-W350-R | |
| Compute (differs) | Intel i7-1255U onboard PC | Intel NUC i3, 8GB RAM | |
| Sensors (differs) | IMU, joint encoders | Logitech C920 camera, 9-axis IMU | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 30/ 100 | 45/ 100 | −15 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) | public | public | |
| Trained policies (10) | not public | not public | |
| Verification level | L2 | L2 | |
| Sources (differs) | 3 | 2 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Berkeley Humanoid, ROBOTIS OP3.
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