The Quantum X2 is a new-generation wheeled humanoid robot developed by X Square Robot (自变量机器人). It is powered by the company’s proprietary end-to-end embodied-AI foundation model WALL-A at a billion-parameter scale.
The robot has a humanoid upper body on a wheeled mobile platform and provides 24 total degrees of freedom, including 3 torso DOF and 3 chassis DOF. It features an integrated 15-DOF dexterous hand (end effector) and achieves ±2 mm repeatability.
Its sensor suite includes 2D LiDAR, ultrasonic sensors, an RGB-D camera, 3D-ToF, single-point ToF and infrared, supporting perception and navigation. For precise manipulation the robot can use the five-finger ArtiXon Hand.
The Quantum X2 is intended for manipulation and mobile tasks in scenarios such as home services, scientific research, commercial cleaning and logistics sorting.