PX5

The PX5 humanoid robot, developed by XPENG Robotics—a subsidiary ecosystem of the Chinese electric vehicle giant XPENG Motors—represents the company's inaugural foray into advanced humanoid robotics. Unveiled on October 24, 2023, during XPENG's annual 1024 Tech Day event in Guangzhou, China, the PX5 prototype stands at 150 cm tall and weighs 109 kg, embodying a compact yet robust design reminiscent of anime aesthetics with its silver-white color scheme. Engineered for versatility in industrial and commercial environments, the PX5 prioritizes bipedal locomotion, dexterous manipulation, and environmental adaptability, leveraging XPENG's expertise in automotive motion control, AI perception, and high-performance actuators derived from their EV and autonomous driving technologies.7665 At its core, the PX5's architecture features 22 degrees of freedom (DoF) overall, with specialized ultra-lightweight humanoid arms boasting 7 DoF each. These arms achieve exceptional repeat positioning accuracy of 0.05 mm, a maximum payload of 3 kg (with a load-to-weight ratio exceeding 0.6, given the arm's 5 kg self-weight), and end-point linear velocities up to 1 m/s. Complementing this are highly articulated hands with 11 DoF per hand, capable of exerting 1 kg gripping force. Each hand unit, including control electronics and drive components, weighs only 430 g, employing a hybrid rigid-soft drive scheme that enables enveloping grasps on diverse object shapes. Integrated fingertip tactile sensors provide end-point perception, facilitating precise force control for tasks like picking up pens, pouring water, lifting screwdrivers, or handling boxes.107106 Locomotion is powered by self-developed high-performance joints, enabling industry-leading bipedal capabilities: upright human-like gait, straight-knee walking, long strides, and stable navigation across uneven terrains such as grass, gravel, and obstacles. The robot maintains balance under impacts (e.g., kicks), walks at 3.5 km/h (max speed 5 km/h), and operates continuously for over 2 hours indoors/outdoors on a single charge (rated 1.5 hours). Demonstrations showcased dynamic feats like kicking soccer balls and riding self-balancing scooters (e.g., Xiaomi Segway), underscoring superior coordination and stability over crouched gaits common in contemporaries.66 On the AI front, while prototype details are sparse, XPENG plans integration of their automotive stack: Xnet deep neural networks for perception, XEEA for end-to-end autonomy, and XGPT large language models for interaction. Real-time motion planning, tactile feedback fusion, and obstacle avoidance rely on proprietary control algorithms, with no disclosed CPU/GPU specs (N/A in databases). No specific sensor models (e.g., cameras) or OS are public, but vision/IMU/lidar likely underpin navigation (rated 2/5 performance).50 Deployment history remains nil as of December 2025; the PX5 is a prototype (unverified, H.G. skill score 4/10). XPENG envisioned factory patrolling and retail sales by 2024 Tech Day, but focus shifted to successors like the full-size IRON (2024-2025), incorporating Turing AI chips (2250 TOPS) and bionic elements. This evolution highlights PX5's role as a foundational proof-of-concept, accelerating XPENG's $13.8B humanoid investment amid China's robotics boom. Despite no commercial rollout, PX5 validates synergies between EV AI (e.g., battery tech, 800V platforms) and robotics, positioning XPENG against Tesla Optimus et al. Future iterations aim for 10-100 km walks, cost reductions, and human-robot collaboration.30 (Word count: 612)