humanoidrobots.systems

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Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.

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Fourier GR-1 vs Rainbow Robotics RB-Y1

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Fourier GR-1 is 25 cm taller (165 vs 140 cm) than Rainbow Robotics RB-Y1. Both score 30/100 on openness. Availability for both: buy.

Side-by-side specifications. Rows marked with a square differ.
FieldFourier (Fourier Intelligence)Fourier GR-1Rainbow RoboticsRainbow Robotics RB-Y1Δ first − second
Identity
Maker (differs)Fourier (Fourier Intelligence)Rainbow Robotics
Class (differs)HumanoidWheeled humanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)ChinaSouth Korea
Year (differs)20232024
Specifications
Height (differs)165cm140cm+25 cm (+18%)
Mass—unsourced131kg
Degrees of freedom—unsourced20
Payload—unsourced3kg
Top speed—unsourced1.5m/s
Runtime—unsourced—unsourced
Battery capacity—unsourced1,250Wh
Price—unsourced—unsourced
Actuators (differs)Fourier FSA smart actuatorsRainbow in-house joint modules
Compute—unsourcedDual-PC (real-time robot PC + user PC with ROS 2)
Sensors—unsourcedBuilt-in wrist force/torque sensors (v1.2); optional camera
Openness and provenance
Openness bar3030
Openness score30/ 10030/ 100=
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15)not publicnot public
Software (10)publicpublic
Trained policies (10)not publicnot public
Verification level (differs)L1L2
Sources22
Last checked2026-09-242026-09-24
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Best-documented pairs

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