QUANTA X2

The QUANTA X2, developed by Shenzhen-based X Square Robot, represents a groundbreaking advancement in wheeled humanoid robotics, launched in August 2025 amid a $100M+ Series A+ funding round led by Alibaba Cloud. Standing at 164-172 cm tall and weighing approximately 95 kg, this 62-degree-of-freedom (DoF) platform integrates a sophisticated end-to-end architecture powered by the company's proprietary WALL-A large operating model. WALL-A, part of the Great Wall embodied foundation model series, boasts tens of billions of parameters, enabling seamless fusion of perception, reasoning, and high-precision manipulation within a unified framework. This end-to-end structure eliminates traditional modular robotics programming, allowing generalization across diverse tasks and unstructured environments through billion-scale training data and multimodal inputs. Architecturally, QUANTA X2 features a bimanual design with 6 DoF torso, 2 DoF chassis for omnidirectional mobility (up to 1 m/s), 2 DoF grippers, and 20 DoF dexterous hands per arm, complemented by tendon-driven actuators and miniature gear reducers for sub-millimeter precision (±0.03 mm repeatability). Each arm offers 765 mm reach, 1.8 m/s TCP speed, and 6 kg payload (25 kg dual-arm max), housed in a composite shell over an alloy frame for durability and human safety. Sensor suite includes 1x 2D LiDAR, 4x ultrasonic sensors, 1x RGB-D camera, 1x 3D TOF camera, 1x single-point TOF, and 1x infrared sensor, augmented by tactile feedback in hands for delicate operations like zipping, wiring, or fluid handling. The WALL-A model excels in embodied intelligence, demonstrated in tasks such as houseplant care (temporal-spatial memory), food processing (friction handling), drink mixing (deformable objects), package sorting (real-time adaptation), industrial assembly (human-level speed), clutter cleaning (shape generalization), and even physical chain-of-thought for ice cream making. It supports cross-modal reasoning, high-DOF coordination, and interference-resistant autonomy, optimized via hardware-software co-design for real-world deployment. As a prototype transitioning to commercial viability, QUANTA X2 targets home services, commercial cleaning, logistics, and research. Post-launch deployments focus on multi-step complex tasks in open environments, with open-source WALL-OSS variant accelerating ecosystem growth. Backed by iterative refinement, it challenges global leaders like Figure AI, positioning X Square as a frontrunner in China's humanoid boom. Future scalability promises broader adoption, with IPO ambitions signaling maturity. (612 words)