GR-3 vs RB-Y1
Humanoid robot spec comparison — Fourier Intelligence vs Rainbow Robotics.
Fourier Intelligence
GR-3
67 / 100 Robo2u Score
Care-focused companion humanoid from Fourier Intelligence with cushioned surfaces
Rainbow Robotics
RB-Y1
62 / 100 Robo2u Score
Wheeled dual-arm humanoid manipulator for AI research labs
| Spec | GR-3 | RB-Y1 |
|---|---|---|
| Released | 2025-08 | 2024-05 |
| Status | Production | Production |
| Height | 165 cm | 140 cm |
| Payload | 3 kg | 6 kg |
| Degrees of freedom | 55 | 24 |
| Runtime | 180 min | 180 min |
| Top speed | — | 1.5 m/s |
| Price | — | $80k |
| Robo2u Score | 67 | 62 |
Highlighted = better on that spec (lower is better for price and weight; newer for release). The Robo2u Score is a transparent composite — see the Humanoid Showdown for the full field.
