humanoidrobots.systems

Fourier N1 vs Menlo Asimov 1

Generated from the registry · revision 2026-09-26 · openness out of 100

Fourier N1 is 10 cm taller (130 vs 120 cm) and 3 kg heavier (38 vs 35 kg) than Asimov 1. Fourier N1 has 2 fewer degrees of freedom (23 vs 25) than Asimov 1. Openness score: Fourier N1 85, Asimov 1 70 (of 100); only Fourier N1 publishes BOM and POL; only Asimov 1 publishes FW. Availability: Fourier N1 buy, Asimov 1 kit.

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Side by side

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Side-by-side specifications. Rows marked with a square differ.
FieldFourier (Fourier Intelligence)Fourier N1Menlo Research (Asimov)Menlo Asimov 1Δ first − second
Identity
Maker (differs)Fourier (Fourier Intelligence)Menlo Research (Asimov)
ClassHumanoidHumanoid
StatusActiveActive
Availability (differs)BuyKit
Country (differs)ChinaSingapore
Year (differs)20252026
Specifications
Height (differs)130cm120cm+10 cm (+8%)
Mass (differs)38kg35kg+3 kg (+9%)
Degrees of freedom (differs)2325−2 (-8%)
Payload—unsourced—unsourced
Top speed3.5m/s—unsourced
Runtime120min—unsourced
Battery capacity—unsourced—unsourced
Price—unsourced20,000USD
Actuators (differs)Fourier FSA actuators; URDF effort limits 95 N·m x4, 54 N·m x7, 30 N·m x12CAN-bus actuators; 6 DOF/leg, 5 DOF/arm, 1 waist, 2 neck; RSU ankle with passive toes
Compute—unsourcedRaspberry Pi 5 (media/network) + Radxa CM5 (motion control)
Sensors—unsourced2MP monocular camera, stereo mic array, 6-DOF IMU, joint states
Openness and provenance
Openness bar8570
Openness score (differs)85/ 10070/ 100+15
CAD (25)publicpublic
Bill of materials (20) (differs)publicnot public
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15) (differs)not publicpublic
Software (10)publicpublic
Trained policies (10) (differs)publicnot public
Verification level (differs)L2L1
Sources (differs)83
Last checked (differs)2026-09-252026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Fourier N1, Asimov 1.

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