COMMERCIAL
GR-3
Fourier Intelligence
PrivateFounded in 2015 in Shanghai by Alex Gu, Fourier began in medical rehabilitation exoskeletons before pivoting to general purpose humanoid robotics. Unveiled the GR-1 humanoid at the 2023 World AI Conference in Shanghai. Operates rehabilitation devices in hundreds of hospitals across more than 10 countries.
Founded 2015$234M raised
Humanoid Robots
COMMERCIAL
GR-2
About Fourier Intelligence
Fourier (formerly Fourier Intelligence) is a Chinese robotics company founded in 2015 in Shanghai, originally focused on rehabilitation robotics and now a leading developer of general-purpose humanoid robots. The company's portfolio spans rehabilitation exoskeletons used in hundreds of hospitals across 40+ countries and the GR series of humanoid robots. Fourier's differentiator is its trajectory from medical rehabilitation, with deep expertise in human biomechanics and safe human-robot interaction, into full-scale humanoid development.
Technical Profile
Platform maturity, autonomy stack, and flagship-system specifications in one view.
Technology Snapshot
A concise view of platform maturity and deployment footprint.
Hardware GenerationGen 2
Flagship PlatformGR-2
Deployments1,000
AI Stack
Capabilities and model layers highlighted by the company.
01ROS2
02TensorFlow
GR-2 Specs
Published operating specifications for the lead system.
Battery Life3 hours
Payload Capacity3 kg
Speed5 km/h
Degrees of Freedom55
Certifications
Standards and certifications currently associated with the platform.
01CE
02ISO 13482
03FDA 510(k)
Investors
Latest Updates
2026Company MilestoneCorporate
Fourier unveils the GR-3 care robotIn early 2026, Fourier unveiled the GR-3, a humanoid care robot advancing emotional AI in robotics.
Valuation History
Track Fourier Intelligence's valuation over time.
Funding Rounds
2021-01-01Series C$100M
2022-06-01Series D$300M
2023-10-01Series E$600M
2025-01-01Series F$1.10B
Fourier Intelligence Team
Fourier Intelligence History
- 2015 - 2017
Fourier starts in rehabilitation robotics
Fourier was founded in 2015 by Alex Gu (Gu Jie) and Zen Koh in Shanghai's Zhangjiang high-tech zone, with the mission of transforming physical rehabilitation through robotics. In 2017, Fourier unveiled the X1, China's first lower-limb exoskeleton with tactile feedback, and launched the M2 upper-limb rehabilitation robot.
ShanghaiX1M2 - 2019 - July 2023
The GR humanoid program emerges from the rehab business
By 2019, Fourier had deployed devices in hundreds of hospitals across more than 10 countries, establishing itself as a global leader in rehabilitation robotics. The humanoid pivot began in 2019 with development of the GR-1. In July 2023, the GR-1 was publicly unveiled at WAIC in Shanghai.
GR-1WAIC - 2024 - 2025
GR-2 and new financing support the humanoid push
In 2024, Fourier unveiled the GR-2, a next-generation humanoid with comprehensive upgrades. The company rebranded, splitting into "Fourier" for humanoid robotics and "Fourier Rehab" for medical devices. Since founding, Fourier has completed nine funding rounds, including Series D backed by SoftBank Vision Fund II and a Series E in early 2025 worth nearly 800 million yuan.
GR-2Series E - August 6, 2025
GR-3 care-centric humanoid unveiled
In August 2025 Fourier positioned GR-3 as its first care-centric humanoid, emphasizing soft design, multimodal vision/audio/tactile interaction, dual hot-swappable batteries, and service scenarios such as companionship, education, and assisted living. Specs widely listed: 165 cm, 71 kg, 55 DoF, ~3h runtime per pack.
GR-3care-bothumanoid - 2026
Fourier unveils the GR-3 care robot
In early 2026, Fourier unveiled the GR-3, a humanoid care robot advancing emotional AI in robotics.
GR-3Care robotics
Fourier (formerly Fourier Intelligence) is a Chinese robotics company founded in 2015 in Shanghai, originally focused on rehabilitation robotics and now a leading developer of general-purpose humanoid robots. The company's portfolio spans rehabilitation exoskeletons used in hundreds of hospitals across 40+ countries and the GR series of humanoid robots. Fourier's differentiator is its trajectory from medical rehabilitation, with deep expertise in human biomechanics and safe human-robot interaction, into full-scale humanoid development.