Forerunner K2 vs Tiangong Ultra
Humanoid robot spec comparison — Kepler Robotics vs Beijing Humanoid Robot Innovation Center (X-Humanoid).
Kepler Robotics
Forerunner K2
83 / 100 Robo2u Score
Industrial general-purpose humanoid from Kepler Robotics with strong dexterous manipulation
Beijing Humanoid Robot Innovation Center (X-Humanoid)
Tiangong Ultra
36 / 100 Robo2u Score
Electric running humanoid that won the world's robot half-marathon
| Spec | Forerunner K2 | Tiangong Ultra |
|---|---|---|
| Released | 2024-10 | 2025-04 |
| Status | Production | Research |
| Height | 178 cm | 180 cm |
| Payload | 30 kg | — |
| Degrees of freedom | 52 | — |
| Runtime | 480 min | — |
| Top speed | 1.1 m/s | 3.3 m/s |
| Price | $30k | — |
| Robo2u Score | 83 | 36 |
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.
