Fourier launches GR-2 humanoid with tactile hands and FSA 2.0 actuators
GR-2 adds tactile hands, redesigned actuators and a developer toolchain to Fourier’s full-size humanoid platform.
Fourier has launched GR-2, a full-size humanoid with redesigned actuators and tactile hands intended to support more precise manipulation. Unveiled on 30 September, the robot stands 175 cm tall, weighs 63 kg and has 53 degrees of freedom, with a rated single-arm load of 3 kg.
The hands each provide 12 degrees of freedom, while six array-type tactile sensors supply contact information for handling objects. Fourier’s FSA 2.0 actuator range includes seven configurations matched to different joints, with peak torque exceeding 380 N·m. The company has also moved from a parallel to a serial joint configuration to simplify control, debugging and manufacture, and concealed power and communications cabling within the structure.
A detachable battery has twice the capacity of its predecessor, extending operating time by an hour according to Fourier. The company did not specify an absolute runtime in the launch announcement. Hardware changes are accompanied by teaching modes using virtual reality, physical guidance and direct commands, with motion and tactile data collected for training.
GR-2’s software development kit provides modules for vision, motion planning and force control, alongside support for simulation environments including NVIDIA Isaac Lab and MuJoCo. Fourier is positioning the platform for researchers and developers working across locomotion, manipulation and robot learning.