Chinese robotics startup RobotEra, backed by Tsinghua University in Beijing, has announced the launch of its latest full-scale humanoid robot, the L7—marking a major leap in advanced robotic engineering.

Standing at approximately 171 cm, the L7 is equipped with 55 degrees of freedom distributed across its joints, granting it exceptional agility and balance. Each joint delivers up to 400 Nm of torque, empowering the robot to lift up to 20 kg with both arms and sprint at speeds reaching 14.4 kilometers per hour (around 4 meters per second). These capabilities officially make it the fastest humanoid robot in the world today.

Torque, the rotational force used to move or spin objects, plays a crucial role here. It enables L7’s limbs to push, lift, and swing powerfully without stalling—making it capable of high-speed, expressive movements such as running, dancing, and executing a full 360-degree spin.

The robot operates through an integrated control system described as “body + brain,” which coordinates all joint movements via an advanced onboard computing unit. This system receives real-time feedback from sensors embedded around the robot’s head, granting panoramic 360-degree vision and allowing it to accurately anticipate foot placement and fingertip pressure mid-motion.

Despite the engineering complexities that typically arise with increased robot size, the L7 overcomes these challenges using lightweight motors, carbon-fiber housings, and a hot-swappable battery system reminiscent of a laptop pack—simplifying maintenance and functionality in industrial settings.

During factory testing, L7 demonstrated impressive dexterity and precision. It successfully sorted parcels, screwed bolts into wheel hubs without damaging threads, and performed fluid, synchronized dance routines. These tests confirmed the robot’s readiness to match human speed and coordination on production lines.

Notably, RobotEra has already shipped over 200 units this year and counts nine of the ten richest tech companies among its clients—a strong vote of confidence in the firm’s innovation.

Before the L7’s debut, RobotEra had introduced an earlier humanoid model named STAR1. This robot gained wide recognition for its ability to use chopsticks skillfully, prepare dumplings, pour wine, and take part in traditional Chinese table greetings. STAR1 was the first to feature the advanced XHAND1 robotic hand, boasting 12 degrees of freedom and considered one of the most precise and flexible robotic hands globally.

XHAND1 isn’t merely a mechanical limb—it incorporates high-resolution tactile sensors that detect force, temperature, and texture. It excels in delicate operations, such as handling soft objects or tapping ten times per second with impressive speed and finesse.

With these accomplishments, RobotEra continues to accelerate its presence in the humanoid robotics field, signaling China’s growing dominance in the global race to develop smart machines that can perform human tasks with unprecedented efficiency and power.