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 humanoidsCassie has 46 fewer degrees of freedom (10 vs 56) than Atlas (electric). Openness score: Cassie 20, Atlas (electric) 0 (of 100); only Cassie publishes SIM. Availability: Cassie research only, Atlas (electric) not for sale.
| Field | Agility RoboticsAgility Cassie | Boston DynamicsBoston Atlas (electric) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Agility Robotics | Boston Dynamics | |
| Class (differs) | Biped | Humanoid | |
| Status (differs) | Discontinued | Active | |
| Availability (differs) | Research only | Not for sale | |
| Country | United States | United States | |
| Year (differs) | 2017 | 2024 | |
| Specifications | |||
| Height | —unsourced | 150cm | |
| Mass | —unsourced | 89kg | |
| Degrees of freedom (differs) | 10 | 56 | −46 (-82%) |
| Payload | —unsourced | 50kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 240min | |
| Battery capacity | —unsourced | —unsourced | |
| Price | Not for sale | Not for sale | |
| Actuators | —unsourced | Electric; actuators supplied by Hyundai Mobis | |
| Compute | —unsourced | —unsourced | |
| Sensors | —unsourced | 360-degree cameras; tactile-sensing hands | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 20/ 100 | 0/ 100 | +20 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) (differs) | public | not public | |
| Firmware (15) | not public | not public | |
| Software (10) | not public | not public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L2 | L0 | |
| Sources | 3 | 3 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
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