Forerunner K2 vs RB-Y1
Humanoid robot spec comparison — Kepler Robotics vs Rainbow Robotics.
Kepler Robotics
Forerunner K2
83 / 100 Robo2u Score
Industrial general-purpose humanoid from Kepler Robotics with strong dexterous manipulation
Rainbow Robotics
RB-Y1
62 / 100 Robo2u Score
Wheeled dual-arm humanoid manipulator for AI research labs
| Spec | Forerunner K2 | RB-Y1 |
|---|---|---|
| Released | 2024-10 | 2024-05 |
| Status | Production | Production |
| Height | 178 cm | 140 cm |
| Payload | 30 kg | 6 kg |
| Degrees of freedom | 52 | 24 |
| Runtime | 480 min | 180 min |
| Top speed | 1.1 m/s | 1.5 m/s |
| Price | $30k | $80k |
| Robo2u Score | 83 | 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.
