Fourier GR-2 vs Stanford ToddlerBot
Generated from the registry · revision 2026-09-26 · openness out of 100
Fourier GR-2 is 119 cm taller (175 vs 56 cm) and 59.6 kg heavier (63 vs 3.4 kg) than ToddlerBot. Fourier GR-2 has 23 more degrees of freedom (53 vs 30) and 1.52 kg more rated payload (3 vs 1.48 kg) than ToddlerBot. Openness score: Fourier GR-2 30, ToddlerBot 100 (of 100); only ToddlerBot publishes CAD, BOM, FW and POL. Availability: Fourier GR-2 buy, ToddlerBot diy build.
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Side by side
■ rows differ| Field | Fourier (Fourier Intelligence)Fourier GR-2 | Stanford UniversityStanford ToddlerBot | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Fourier (Fourier Intelligence) | Stanford University | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Active | Research | |
| Availability (differs) | Buy | DIY build | |
| Country (differs) | China | United States | |
| Year (differs) | 2024 | 2025 | |
| Specifications | |||
| Height (differs) | 175cm | 56cm | +119 cm (+213%) |
| Mass (differs) | 63kg | 3.4kg | +59.6 kg (+1753%) |
| Degrees of freedom (differs) | 53 | 30 | +23 (+77%) |
| Payload (differs) | 3kg | 1.48kg | +1.52 kg (+103%) |
| Top speed | —unsourced | —unsourced | |
| Runtime | 120min | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price | —unsourced | —unsourced | |
| Actuators (differs) | Fourier FSA 2.0 actuators (>380 N·m peak) | servo actuators; 7 DOF/arm, 6 DOF/leg, 2 neck, 2 waist | |
| Compute | —unsourced | NVIDIA Jetson Orin NX 16GB | |
| Sensors | —unsourced | —unsourced | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 30/ 100 | 100/ 100 | −70 |
| 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) | public | public | |
| Trained policies (10) (differs) | not public | public | |
| Verification level (differs) | L1 | L2 | |
| Sources (differs) | 2 | 3 | |
| 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: Fourier GR-2, ToddlerBot.
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