Boston Atlas (electric) vs Fourier GR-2
Generated from the registry · revision 2026-09-26 · openness out of 100
Atlas (electric) is 25 cm shorter (150 vs 175 cm) and 26 kg heavier (89 vs 63 kg) than Fourier GR-2. Atlas (electric) has 3 more degrees of freedom (56 vs 53) and 47 kg more rated payload (50 vs 3 kg) than Fourier GR-2. Openness score: Atlas (electric) 0, Fourier GR-2 30 (of 100); only Fourier GR-2 publishes SIM and SW. Availability: Atlas (electric) not for sale, Fourier GR-2 buy.
01
Side by side
■ rows differ| Field | Boston DynamicsBoston Atlas (electric) | Fourier (Fourier Intelligence)Fourier GR-2 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Boston Dynamics | Fourier (Fourier Intelligence) | |
| Class | Humanoid | Humanoid | |
| Status | Active | Active | |
| Availability (differs) | Not for sale | Buy | |
| Country (differs) | United States | China | |
| Year | 2024 | 2024 | |
| Specifications | |||
| Height (differs) | 150cm | 175cm | −25 cm (-14%) |
| Mass (differs) | 89kg | 63kg | +26 kg (+41%) |
| Degrees of freedom (differs) | 56 | 53 | +3 (+6%) |
| Payload (differs) | 50kg | 3kg | +47 kg (+1567%) |
| Top speed | —unsourced | —unsourced | |
| Runtime (differs) | 240min | 120min | +120 min (+100%) |
| Battery capacity | —unsourced | —unsourced | |
| Price | Not for sale | —unsourced | |
| Actuators (differs) | Electric; actuators supplied by Hyundai Mobis | Fourier FSA 2.0 actuators (>380 N·m peak) | |
| Compute | —unsourced | —unsourced | |
| Sensors | 360-degree cameras; tactile-sensing hands | —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 (differs) | 3 | 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 (electric), Fourier GR-2.
02