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Physical AI / Company profile

Fourier Intelligence

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Company overview

What Fourier Intelligence does

Fourier Intelligence (now branding as “Fourier”) is a physical-AI robotics company building embodied humanoid robots and rehabilitation-focused robotic systems. The company’s humanoid program is centered on its GRx series, with published specifications and developer resources for models such as GR-2 and GR-3, while its rehabilitation arm (branded as “Fourier Rehab”) focuses on exoskeletons and integrated rehab workflows. Fourier’s product positioning emphasizes (1) robot bodies that can support real-world interaction and dynamic motion, and (2) an ecosystems approach that includes software/SDKs and a rehabilitation solution layer to support clinicians, researchers, and partner organizations deploying robots in practical settings.

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News

Capital

Funding

Latest disclosed valuationNot disclosed
Tracked capital$400M6 sourced rounds
DateRoundRaisedValuationLead / investorsEvidence
May 01, 2025Strategic financing（战略融资）$3—
Not attributed
+1 investor
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Jan 07, 2025Series E (E轮)$8—
Not attributed
+6 investors
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Jan 27, 2022Series D$400M—
SoftBank Vision Fund 2
+2 investors
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Mar 01, 2021C+轮——
Not attributed
+2 investors
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Oct 26, 2020Series C (C轮)$1—
元璟资本
+2 investors
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May 06, 2020B+轮$1—
前海方舟
+2 investors
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Products & focus

What it builds

GR-3 Series humanoid (“Care-bot”)

Fourier describes GR-3 as its first “Care-bot” humanoid robot designed for interactive companionship, emphasizing affinity, safety, and emotional interaction, and citing a multimodal interaction approach centered on hearing, vision, and touch.

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GR-2 humanoid (“GRx Robot Series”)

Fourier describes GR-2 as a next-generation member of its GRx humanoid series, publishing physical specifications (e.g., height/weight), performance figures (e.g., peak torques), and stating it includes upgraded hands, actuation, and an SDK/tooling approach for developers.

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Fourier RehabHub™

Fourier markets “RehabHub™” as an integrated rehab robotics solution intended to improve wellness and rehabilitation outcomes via a robotics solution stack (with supporting literature available as a brochure).

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MetaMotus™ Galileo

Fourier lists MetaMotus™ Galileo under its rehabilitation offerings on its main site, presenting it as part of its rehab ecosystem.

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Operating signals

Key metrics

GR-3: height and weight165 cm; 71 kgpublished on Fourier documentation page (no explicit date shown on page snippet)GR-3: degrees of freedom (DoF)55 degrees of freedompublished on Fourier documentation page (no explicit date shown on page snippet)GR-3: single-arm payloadUp to 3 kgpublished on Fourier documentation page (no explicit date shown on page snippet)GR-2: height and weight175 cm; 63 kgpublished on product pageGR-2: battery runtime2 hours (as stated on page)published on product pageGR-2: peak torque380 N.m (as stated on page)published on product pageGR-2: peak speed5 km/h (as stated on page)published on product pageGR-2: degrees of freedom (DoF)53 joints / up to 53 DoF (as stated across product page text)published on product page
Company history

Milestones & partnerships

Date not disclosed
GR-3 developer materials published (SDK/docs)

Fourier provides developer-facing documentation for controlling and operating GR-3 robots using its Aurora SDK, including a “Quick Start” guide for real robots.

↗Date not disclosed
GR-2 product specifications and developer approach published

Fourier publishes GR-2 specifications (e.g., size/weight, peak torque, and SDK/tooling information), positioning the robot for research, enterprise, and real-world validation.

↗Date not disclosed
Open-source humanoid platform: Fourier N1

Fourier describes its N1 as an open-source humanoid robot intended for embodied AI research, listing hardware specs and referencing downloadable resources and a GitHub link.

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