Agility Cassie vs K-Scale K-Bot
Generated from the registry · revision 2026-09-26 · openness out of 100
Cassie has 10 fewer degrees of freedom (10 vs 20) than K-Bot. K-Bot lists at $8,999; Cassie is not for sale. Openness score: Cassie 20, K-Bot 100 (of 100); only K-Bot publishes CAD, BOM, FW, SW and POL. Availability: Cassie research only, K-Bot diy build.
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Side by side
■ rows differ| Field | Agility RoboticsAgility Cassie | K-Scale LabsK-Scale K-Bot | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Agility Robotics | K-Scale Labs | |
| Class (differs) | Biped | Humanoid | |
| Status | Discontinued | Discontinued | |
| Availability (differs) | Research only | DIY build | |
| Country | United States | United States | |
| Year (differs) | 2017 | 2025 | |
| Specifications | |||
| Height | —unsourced | 140cm | |
| Mass | —unsourced | 34kg | |
| Degrees of freedom (differs) | 10 | 20 | −10 (-50%) |
| Payload | —unsourced | 10kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 240min | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | Not for sale | 8,999USD | |
| Actuators | —unsourced | RobStride RS00 x2, RS02 x6, RS03 x8, RS04 x4 | |
| Compute | —unsourced | Raspberry Pi 5 | |
| Sensors | —unsourced | cameras, microphones, head sensor array | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 20/ 100 | 100/ 100 | −80 |
| CAD (25) (differs) | not public | public | |
| Bill of materials (20) (differs) | not public | public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) (differs) | not public | public | |
| Trained policies (10) (differs) | not public | public | |
| Verification level (differs) | L2 | L1 | |
| Sources (differs) | 3 | 7 | |
| 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: Cassie, K-Bot.
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