Fourier N1
Fourier Intelligence · Price on request · Get a current price
Overview
Child-size open-source humanoid from Fourier (Shanghai), also called Nexus-01: about 1.3 m tall and 38-39 kg, with 23 degrees of freedom (5 per arm, 6 per leg, 1 waist; no hands, head expandable), an Intel Core i7-13700H computer and a 475 Wh battery for about 2 h. Announced April 2025 together with an open-source package (bill of materials, structural drawings, assembly guide, base software).
Software & 3D models
- URDF: yes
- MuJoCo: yes
- Isaac Sim (USD): not found
- Gazebo: not found
- CAD (STEP): not found
- SDK: yes
- ROS: not found
- ROS 2: not found
- RoboDK: not found
Checked 2026-10-17. Links are not published; we share them with clients.
Variants & pricing
| Variant | Status | Available | Current price |
|---|---|---|---|
| N1 | development | — | Contact |
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Full price history
| Price | Date | Variant | Source | Note |
|---|---|---|---|---|
| Contact | 2026-10-17 | N1 | Fourier official documentation | No price or ordering information on the official N1 documentation. Press at launch (Yicai, 2025-04-14) said pricing was not set and would stay 'flexible'. |
Sensors
- Stereo camera (optional)
- 6-axis IMU (acceleration and angular velocity)
- Dual joint encoders (16-bit / 14-bit)
Locomotion
bipedal walking, running
Manipulation
Arms: 5 DOF · Hands: None as standard (23 DOF excludes dexterous hands)
Use cases
research, education, development
Software
OS: Ubuntu 22.04 · SDK: ✓ · ROS: ✗ · Open source: ✓
Key facts
- Official table vs intro: weight is 'about 39 kg' in the parameter table and 38 kg in the intro (the table's 39 kg is entered); running speed is 10.8 km/h (3.0 m/s) in the table and 'maximum stable running speed 3.5 m/s' (12.6 km/h) in the intro (the table's more conservative 10.8 km/h is entered); walking speed 2.7 km/h. Launch press (Yicai, 2025-04-14) gave 38 kg and 3.5 m/s.
- Peak joint torque 144 N·m is from the official parameter table; per-joint upper limits there range from 30 to 90 N·m. A press report (163.com) quotes 96 N·m peak; the official table value is used.
- DOF split: 5 per arm, 6 per leg, 1 waist, head 0 (expandable) = 23. Arm span 1240 mm; body dimensions 1245 x 441 x 202 mm; aluminium alloy and engineering plastic.
- Battery: lithium-ion 475 Wh, 39.6 V nominal, 3.2 kg or less, about 3.5 h charge. Press says the battery plugs in at the back; the official page does not say it is hot-swappable, so battery_swappable is left empty.
- Open-source scope (Yicai, April 2025): bill of materials, structural drawings, assembly guide, core control system and base software code, with whole-body control and multi-task modules to follow. An SDK guide and a documentation repo (github.com/FFTAI/fourier-grx-N1, MIT) exist; the licence of the hardware files is not stated on the page, open_source is set from Fourier's own 'open-source' announcement.
- ROS support is not stated on the official page (ros_support false means 'not stated').
- Status 'development': no sale, price list or shipping date was found for the N1 as a product; it was released as an open-source platform.
About Fourier Intelligence
Transitioned from rehabilitation robotics to general-purpose humanoids with GR series.
https://www.fftai.com · Founded: 2015 · HQ: Shanghai, China
Last updated: 2026-10-17 · Full dataset (CSV/JSON, CC BY 4.0)