Fourier · Humanoid · 2025
The Fourier N1 (Nexus-01) is billed as the first fully open-source humanoid robot, launched by Shanghai-based Fourier Intelligence in April 2025 along with its complete bill of materials, CAD/STEP drawings, assembly instructions and control software on GitHub. The compact 1.3 m, 38 kg platform has 23 degrees of freedom (excluding hands) in an aluminium-alloy and engineering-plastic frame, driven by Fourier's self-developed FSA 2.0 integrated actuators delivering up to 96 N·m peak joint torque and a top running speed of 3.5 m/s. A back-mounted swappable battery gives 2+ hours of continuous operation. In validation it logged over 1,000 hours of outdoor testing — climbing 15-20° slopes and 20 cm stairs and recovering from falls. As the founding project of Fourier's 'Nexus' open-source ecosystem, the N1 is aimed at researchers, educators and developers as a low-barrier platform for embodied-AI and locomotion R&D.
Price on application
View full interactive profile, comparisons & videos →| Category | Humanoid |
| Sub-type | Open-Source Humanoid |
| Status | Active |
| Year | 2025 |
| Origin | China |
| Released | 2025-02-01 |
| Weight | 38 kg |
| Frame | Aluminum alloy + engineering plastics |
| Degrees of freedom | 23 |
| Max speed | 3.5 m/s |
| Running speed | 3.5 m/s |
| Battery life | 120 min |
| Actuator type | FSA (Fourier Smart Actuator) |
| Use cases | Research, Education, Developer platform, Locomotion research, Embodied AI |
| Made in | China |
