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Shanghai-based Fourier at the moment launched GR-2, the newest era of its GRx humanoid robotic collection. The corporate has upgraded its {hardware}, design, and software program.
“GR-2 is a giant step into the way forward for humanoid robotics,” said Alex Gu, CEO of Fourier. “We’re keen about constructing probably the most intuitive embodied agent for AI, permitting it to interact with the bodily world in methods like by no means earlier than. Fourier is worked up to have builders, researchers, and enterprises be a part of us on this unbelievable journey.”
This announcement adopted the firm‘s rebranding from Fourier Intelligence to Fourier earlier this 12 months, and the GR-2 launch builds on the manufacturing launch of the first-generation GR-1 in late 2023.
Fourier improves {hardware} design
The GR-2 stands 175 cm (68.9 in.) tall and weighs 63 kg (139 lb.), whereas the GR-1 is 165 cm (65 in.) tall and weighs 55 kg (121 lb.). GR-2 affords 53 levels of freedom and a single-arm load capability of three kg (6.6 lb.).
A brand new characteristic of Fourier’s humanoid is a removable battery with twice the capability of its predecessor and a runtime of as much as two hours. Because the battery is now swappable, customers will be capable of swap batteries shortly and return GR-2 to work.
GR-2 options an built-in cabling design for energy and communication transmission, permitting hid wires and extra compact packaging. The environment friendly format optimizes house for simpler modularization and higher adaptiveness for application-oriented customization.
To simplify the management system and scale back upkeep, Fourier redesigned GR-2’s joint configuration, shifting from a parallel to a serial construction. It stated this improves debugging, lowers manufacturing prices, and enhances the robotic’s capacity to quickly be taught and transition from AI simulation to real-world purposes.
Dexterous arms have 12 levels of freedom

The 12-DoF Dexterous Hand is provided with six array-type tactile sensors. | Credit score: Fourier
The robotic consists of arms with 12 levels of freedom, doubling the dexterity of earlier fashions. The arms are designed to reflect the pliability of human physiology and supply higher precision within the duties that the robotic will likely be requested to finish, stated Fourier.
The fingers on GR-2 even have six array-type tactile sensors that sense power and may determine object shapes and supplies. This permits new algorithms to optimize elements dealing with, the firm stated.
Supporting a number of upper-limb instructing modes—digital actuality distant management, lead-through programming, and direct command—GR-2 can file a complete set of operational information, from movement paths to tactile responses. Fourier stated it expects sturdy information assortment to bridge the hole between digital fashions and real-world purposes, pushing the boundaries of robotic coaching and deployment additional.
FSA 2.0 powers dynamic mobility
To optimize its motion, Fourier developed seven distinct Fourier Sensible Actuators (FSA) for GR-2, every tailor-made to satisfy the particular torque calls for of every joint.
With peak torques exceeding 380 N.m (280.3 ft.-lb.), the FSA 2.0 actuators increase GR-2’s agility and dynamic capabilities. The twin-encoder system doubles management accuracy, making certain exact actions even in high-pressure environments.
Designed for each velocity and precision, FSA 2.0 empowers GR-2 to navigate complicated duties with higher flexibility, stated Fourier.
Fourier optimizes instruments for open-source software program improvement

Fourier GRx collection outlines six key areas for humanoid improvement—locomotion, manipulation, cognition, bionic design, consumer expertise, and industrial viability. | Credit score: Fourier
Fourier optimized GR-2’s improvement platform by introducing a brand new software program improvement package (SDK) suitable with programming languages comparable to ROS. Builders can entry a set of pre-optimized modules for machine imaginative and prescient, path planning, and power suggestions management via software programming interfaces (APIs), stated the firm.
Supporting frameworks comparable to NVIDIA Isaac Lab and Mujoco, the brand new platform empowers builders to deal with innovation, streamlining their workflows, claimed Fourier.