Lightbot 0 Specifications

Last updated: 2026-11-04

Research platform: Lightbot 0 is a custom humanoid Light Origins uses for research. The company has not published battery, compute, speed or price details, so those rows are omitted rather than guessed.

Physical
Standing height	90 cm (~2 ft 11 in)
Weight	18.9 kg (~42 lb)
Actuated joints	21

Sensing & Control
Exteroception	Chest-mounted depth camera
Proprioception	Joint and body state sensing
Command input	Velocity command
Policy	Single recurrent policy (MLP → GRU → MLP) with height-scan reconstruction
Control rate	50 Hz, fully onboard
Not used	Motion capture, pre-built maps, skill labels, state machines, offboard compute

Skills
Contact-rich skills	Climb-and-step, speed vault, reverse vault, step-down
Terrain	Stairs (up and down), narrow beams and plank bridges, boxes, stepping stones, outdoor ground
Transitions	Learned from reward alone; robot chooses when to switch

Published Results (simulation)
Climb-and-step at 70 cm	90.0% success over 500 randomised trials
Climb-and-step at 75 cm	33.4% (deployable policy) vs 98.6% (privileged teacher)
Without recurrent memory, 70 cm	34.2%
Chained skills, learned transitions	98.0% end-to-end vs 33.0% for isolated skills (100 trials)
Real robot	Zero-shot transfer shown in demos; no measured real-world success rates published

Availability
Price	Not for sale
Status	Research platform

How It Compares

Specification	Lightbot 0	Unitree R1	Unitree G1
Height	90 cm	~121 cm	~132 cm
Weight	18.9 kg	~25 kg	~35 kg
Joints / DoF	21	26	23–43
Purpose	Research platform	Consumer / developer	Research / developer
Price	Not for sale	From US$4,900	From ~US$16,000

Specification Sources

Light Origins — LightParkour blog — height, weight, joints, sensing, control rate and all simulation results
arXiv paper — method, skill list and 50 Hz onboard policy

Disclaimer: Specifications are taken from the sources listed above and may change between production batches and configurations. Figures attributed to the manufacturer have not been independently verified. Some content on this page was created with the assistance of AI tools.