K3 Bumblebee vs X1
Humanoid robot spec comparison — Kepler Robotics vs AgiBot.
Kepler Robotics
K3 Bumblebee
79 / 100 Robo2u Score
Successor to the Forerunner K2 with an added waist joint, 30 kg dual-arm lifting and eight-hour shifts
AgiBot
X1
35 / 100 Robo2u Score
Fully open-source 34-DOF compact humanoid with published designs for its PowerFlow joints and controller
| Spec | K3 Bumblebee | X1 |
|---|---|---|
| Released | 2026-07 | 2024-10 |
| Status | Pilot | Research |
| Height | — | 130 cm |
| Payload | 30 kg | 0.5 kg |
| Degrees of freedom | — | 34 |
| Runtime | 480 min | 120 min |
| Top speed | — | 1 m/s |
| Price | — | — |
| Robo2u Score | 79 | 35 |
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.
