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 22 fewer degrees of freedom (10 vs 32) than Dropbear. Dropbear lists at $9,999; Cassie is not for sale. Openness score: Cassie 20, Dropbear 100 (of 100); only Dropbear publishes CAD, BOM, FW, SW and POL. Availability: Cassie research only, Dropbear preorder.
| Field | Agility RoboticsAgility Cassie | Hyperspawn RoboticsHyperspawn Dropbear | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Agility Robotics | Hyperspawn Robotics | |
| Class (differs) | Biped | Humanoid | |
| Status (differs) | Discontinued | Active | |
| Availability (differs) | Research only | Preorder | |
| Country (differs) | United States | India | |
| Year (differs) | 2017 | 2023 | |
| Specifications | |||
| Height | —unsourced | 180cm | |
| Mass | —unsourced | 45kg | |
| Degrees of freedom (differs) | 10 | 32 | −22 (-69%) |
| Payload | —unsourced | 5kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 120min | |
| Battery capacity | —unsourced | 960Wh | |
| Price (differs) | Not for sale | 9,999USD | |
| Actuators | —unsourced | MyActuator RMD-X10, RMD-X8, RMD-X6 and CEM-60 over 1 Mbit/s CAN (18 per the 2026 BOM; myactuator-can lists 12 RMD-X8 Pro, 4 RMD-X10 V3, 6 CEM-60); 6 NEMA 17 lead-screw steppers in the Stewart-platform neck. hyperspawn.ai: servo + QDD. | |
| Compute | —unsourced | NVIDIA Jetson AGX Orin 64GB (BOM; Orin NX 16GB alternative) plus one ESP32-DevKitC-V4 CAN node per limb. Kit: Raspberry Pi 5 base, Jetson Orin advanced. | |
| Sensors | —unsourced | Intel RealSense D455f depth camera, IMU (center-IMU controller role), foot load cells (4x HX711 per foot, dropbear-feet), actuator encoders; five AS5600 magnetic angle sensors per leg controller (observation-safe firmware) | |
| 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 | L2 | L2 | |
| Sources (differs) | 3 | 16 | |
| Last checked (differs) | 2026-09-24 | 2026-09-25 | |
03
Best-documented pairs
most sourced fields on both sidesHyperspawn DropbearvsPollen Reachy 211fHyperspawn DropbearvsKepler Forerunner K2 "Bumblebee"11fHyperspawn DropbearvsPUDU D911fKepler Forerunner K2 "Bumblebee"vsPollen Reachy 211fPollen Reachy 2vsPUDU D911fKepler Forerunner K2 "Bumblebee"vsPUDU D911fHyperspawn DropbearvsRainbow Robotics RB-Y110fHyperspawn DropbearvsUnitree G110fRainbow Robotics RB-Y1vsUnitree G110fEngineAI PM01vsHyperspawn Dropbear10fEngineAI PM01vsRainbow Robotics RB-Y110fEngineAI PM01vsUnitree G110fHyperspawn DropbearvsK-Scale K-Bot10fHyperspawn DropbearvsUnitree H1-210fK-Scale K-BotvsRainbow Robotics RB-Y110fK-Scale K-BotvsUnitree G110fPollen Reachy 2vsRainbow Robotics RB-Y110fPollen Reachy 2vsUnitree G110fRainbow Robotics RB-Y1vsUnitree H1-210fUnitree G1vsUnitree H1-210fEngineAI PM01vsK-Scale K-Bot10fEngineAI PM01vsPollen Reachy 210fEngineAI PM01vsUnitree H1-210fFigure 02vsHyperspawn Dropbear10f