Boston Atlas (hydraulic) vs Fourier GR-2
Generated from the registry · revision 2026-09-26 · openness out of 100
No height, mass, DOF or payload figure is sourced for both Atlas (hydraulic) and Fourier GR-2 yet. Openness score: Atlas (hydraulic) 0, Fourier GR-2 30 (of 100); only Fourier GR-2 publishes SIM and SW. Availability: Atlas (hydraulic) research only, Fourier GR-2 buy.
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Side by side
■ rows differ| Field | Boston DynamicsBoston Atlas (hydraulic) | Fourier (Fourier Intelligence)Fourier GR-2 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Boston Dynamics | Fourier (Fourier Intelligence) | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Discontinued | Active | |
| Availability (differs) | Research only | Buy | |
| Country (differs) | United States | China | |
| Year (differs) | 2013 | 2024 | |
| Specifications | |||
| Height | —unsourced | 175cm | |
| Mass | —unsourced | 63kg | |
| Degrees of freedom | —unsourced | 53 | |
| Payload | —unsourced | 3kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 120min | |
| Battery capacity | —unsourced | —unsourced | |
| Price | Not for sale | —unsourced | |
| Actuators (differs) | Hydraulic | Fourier FSA 2.0 actuators (>380 N·m peak) | |
| Compute | —unsourced | —unsourced | |
| Sensors | —unsourced | —unsourced | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 0/ 100 | 30/ 100 | −30 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) (differs) | not public | public | |
| Firmware (15) | not public | not public | |
| Software (10) (differs) | not public | public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L0 | L1 | |
| Sources | 2 | 2 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Atlas (hydraulic), Fourier GR-2.
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