Fourier Intelligence

Fourier is a company that develops solutions for medical rehabilitation, scientific research, and general-purpose applications in the fields of robotics and artificial intelligence. Since its founding, it has focused on designing systems with human-like mobility, directing its efforts toward diverse applications in robotics. It has created a broad product range spanning from rehabilitation technologies to humanoid robots. Through its platforms, Fourier conducts global collaborations in both clinical services and research and development initiatives.

Founding and General Information

Fourier was founded in 2015 by Alex Gu in Shanghai, China. The company operates with the goal of developing technologies for medical rehabilitation, scientific research, and general-purpose robotics. Initially focused on exoskeleton systems, Fourier later shifted its focus toward humanoid robots and AI-powered solutions. Fourier provides services to more than 2,000 institutions and hospitals across over 40 countries and regions.

In 2024, the company restructured its brand into two distinct divisions: Fourier (general-purpose robotics and artificial intelligence research) and Fourier Rehab (rehabilitation technologies).

Structural Restructuring: Fourier and Fourier Rehab

Fourier

Fourier continues its research in humanoid robots and AI-enabled general-purpose robotics. One of its most significant projects in this domain is the GR-1 and its successor, the GR-2, humanoid robot platforms. Fourier also contributes to research in embodied artificial intelligence through academic and industrial collaborations.

Fourier Rehab

Fourier Rehab is the subsidiary of Fourier dedicated to rehabilitation technologies. It develops products across multiple areas including exoskeleton systems, upper and lower limb rehabilitation devices, and balance and movement training systems. Fourier Rehab collaborates with over 2,000 hospitals and institutions worldwide and aims to improve public health by establishing rehabilitation centers in rural areas.

Technological Development Timeline

Fourier’s technological evolution has progressed through the following stages:

• 2016: The first lower-limb exoskeleton prototype was developed using a bipedal simulation modular design.
• 2017: The first-generation exoskeleton robot, Fourier X1, was launched.
• 2019: The Fourier X2 model was developed through research on upper-limb and motion-balance robots.
• 2020: The company transitioned to humanoid robot research with a bipedal robot prototype.
• 2022: The Gen-1 prototype laid the foundation for the agility and mobility of the current GR-1.
• 2023: GR-1 was introduced as Fourier’s first mass-produced humanoid robot.
• 2024: GR-2 was launched as the second member of the Fourier GRx series.

Products

Humanoid Robots

GR-1:

• Height: 165 cm
• Weight: 55 kg
• 44 joint motors
• Maximum joint torque: 230 Nm
• Walking speed: 5 km/h
• Integrated emotional AI module, oval display, and environmental sound recognition system.

^{GR-1 (}Fourier⁾

GR-2:

• Height: 175 cm
• Weight: 63 kg
• 53 joint motors
• 12-DOF (Degrees of Freedom) flexible hands
• Maximum joint torque: 380 Nm
• Improved cabling system and more compact design
• VR-enabled remote control and direct command system.

^{GR-2 (}Fourier⁾

Rehabilitation Products

Key systems in the Fourier Rehab product portfolio:

• ArmMotus™ M2 Pro (Upper-limb rehabilitation device)
• ExoMotus™ M4 (Lower-limb exoskeleton system)
• WristMotus™ M1W (Wrist rehabilitation device)
• CycleMotus™ Series (Rehabilitation devices based on bicycle motion simulation)
• BalanceMotus™ (Balance and movement coordination training system)
• OTParvos™ (Home and community-based rehabilitation solutions)

MetaMotus Galileo

MetaMotus™ Galileo is designed to integrate virtual reality with robotic technology for applications in biomechanical analysis, rehabilitation exercises, and sports science. This platform supports motor skill development and balance training by simulating everyday life scenarios.

Fourier Nexus

Fourier Nexus is an initiative aimed at creating an open innovation and collaboration community in robotics. It supports the advancement of robotic engineering through joint laboratory projects with universities and research institutions worldwide, robotics competitions, campus ambassador programs, and events such as Fourier RoboCamp.

Ethical Principles

Fourier emphasizes respect for human rights, privacy, and civil liberties in the development of robotic technologies. The company advocates for the establishment of ethical standards and legal regulations in robotics to promote safe and responsible innovation.

Social Contributions

Fourier Rehab contributes to expanding access to rehabilitation services by collaborating with hospitals and clinics in rural areas. The company also partners with special education institutions to provide free rehabilitation sessions and therapies for children with special needs.