KORTHOS / ECOSYSTEM / PRODUCT

GR-2

About

About GR-2

GR-2 is Fourier’s second-generation general-purpose humanoid, developed as a stronger manipulation and interaction platform than GR-1. It combines a full-size biped, articulated waist and head, dexterous hands and higher-torque joints for whole-body tasks.

Fourier supplies GR-2 within its GRx developer ecosystem, alongside control interfaces and data resources used for embodied-AI research. Fourier introduced GR-2 in September 2024 with a developer platform for robot control, data collection and simulation-to-hardware application work.

Capabilities

Source-backed capabilities

  • Operating environments: Physical development evaluation
  • Control modes: Autonomous
  • Fall recovery

    Research demonstration - 2024-11-06 - Rise from the floor using a controller trained in IsaacGym. - environment: Physical development evaluation

    Source

Supply

Supply / Components

  • GR-2

    Core I7 Processor - Compute & Control - Intel - Fourier GR-2 uses an Intel Core i7 processor in its motion-control module - source: support-old.fftai.com

    Source

Research

  • Fourier Aurora SDK

    Research Publication - Fourier Aurora provides Python control examples and MuJoCo integration for GR-1P, GR-2, GR-3 and Fourier N1. Version 1.3.0 separates joint commands, robot status and motion interfaces by platform.

    Source
  • Fourier Advanced Robot Teleoperation System

    Research Publication - Fourier’s teleoperation software maps VR headset and hand tracking to humanoid control, with camera streaming and recording tools. It supplies separate GR1T1, GR1T2 and GR2 configurations and supports multiple camera and hand interfaces.

    Source

Timeline

  • Fourier trains GR-2 floor-to-stand control with Isaac Gym

    2024-11-06 - Capability - Floor-to-stand training completed 3,000 simulated iterations in approximately 15 hours, followed by an 89 percent success rate on physical GR-2 controls. The workflow used TensorRT, CUDA and cuDNN, with migration toward Isaac Lab planned for more complex simulation.

    Source
  • Fourier announces next-generation GR-2 humanoid

    2024-09-30 - Product Launch - The announced platform stood 175 centimetres tall, weighed 63 kilograms and offered 53 degrees of freedom with a stated three-kilogram single-arm payload. Its twelve-degree-of-freedom hands used six array-type tactile sensors, while a detachable battery extended the stated runtime. The developer platform supported VR teaching, lead-through programming and simulation workflows using Isaac Lab and MuJoCo.

    Source

Context

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