Open-Source Research Humanoid Robot
The Fourier N1 is Fourier's open-source humanoid robot, built for embodied AI research. The product page states 130 cm in height, 38 kg in weight, a maximum speed of 3.5 m/s, a two-hour battery and 23 degrees of freedom.
It supports dynamic movements including fast walking, running and stair climbing, aiming to let research teams validate algorithms quickly on a real body. It handles 15 to 20 degree slopes, climbs 20 cm stairs and performs moves such as single-leg balancing and ground push-ups. The frame is lightweight aluminium alloy with engineering plastic. A complete hardware resource package is published: design schematics, a bill of materials, assembly manuals and basic operating software code. Robotlar.org assesses sourcing and alternatives together with organizations that have an N1 requirement.
Enterprise supply · specification support · integration engineering
The Fourier N1 is Fourier's open-source humanoid robot, built for frontier embodied AI research. Versatile motion control, multimodal integration and exploration of future robot form factors are its focus areas.
The figures stated on the product page: 130 cm in height, 38 kg in weight, a maximum speed of 3.5 m/s, a two-hour battery and 23 degrees of freedom. The product brochure gives, for the same body, dimensions of 1245 × 441 × 202 mm, a net weight under 39 kg, a 1240 mm arm span, a 2.7 km/h walking speed and a 10.8 km/h running speed. The degree-of-freedom breakdown is legs 6+6, waist 1, arms 5+5 and head 0.
On the joint side, maximum peak torque is 144 N·m, peak current 70 A, operating voltage 24-60 V, gear backlash under 10 arcmin and dual encoders at 16-bit and 14-bit resolution; communication runs over Ethernet. The battery is 475 Wh lithium-ion under 3.2 kg: over two hours of continuous runtime, approximately 3.5 hours of charging and a life of over 800 cycles.
Compute runs on an Intel Core i7-13700H under Ubuntu 20.04, with Intel Iris Xe graphics, 16 GB of memory and 512 GB of NVMe storage. On the network side there is Wi-Fi 6 through an MT7921K module and LAN up to 2500M. Perception includes an optional binocular depth camera and a 6-axis IMU. Remote control is handled with a Bluetooth gamepad.
On mobility it supports 15 to 20 degree slopes, 20 cm stair steps, single-leg balancing and ground push-ups. The frame is lightweight aluminium alloy with engineering plastic.
A complete hardware resource package is published: design schematics, a bill of materials, assembly manuals and basic operating software code. In the software repositories, URDF models ship under Apache-2.0, the SDK documentation under MIT, and the deployment and training frameworks under LGPL-3.0.
For organizations with an N1 requirement we assess sourcing, timing and the alternatives deliverable today (the Unitree G1) transparently.
3 use casesTap the cover to play; sound and loading start only on click.
The use cases the manufacturer defines for the Fourier N1.
The launch video shows the N1 walking, running and performing dynamic movements.
The N1 handles 15 to 20 degree slopes, climbs 20 cm stair steps and performs complex movements such as single-leg balancing and ground push-ups.
A lightweight aluminium alloy and engineering plastic frame gives a clean, durable body.
A complete hardware resource package is published: design schematics, a bill of materials, assembly manuals and basic operating software code.
The N1 is designed for multi-scenario research and can work in the same environment as Fourier's rehabilitation equipment.
The full mechanical, electronic, performance, joint, battery, processor, interaction and sensor headings appear in the published specification table.
5 images; tap to enlarge.
32 values in 6 categories; data published by the manufacturer.
Verified on the manufacturer page on 18 September 2026.
An itemised quote for the Fourier N1 is prepared by configuration, quantity and delivery scope.
The breakdown is: legs 6+6, waist 1, arms 5+5, head 0. For comparison the same figure is 29 on the GR-2, and the difference lies exactly in the head and the arms. Having no head joint at all means the N1 produces looking behaviour with its body; limiting for an interaction-focused body but irrelevant for locomotion research. Five joints per arm instead of seven narrows the set of poses the arm endpoint can reach: the arm serves more for carrying load and balance than for fine manipulation. The 6+6 leg joints are fully preserved, because the running and stair-climbing budget sits there.
The published hardware resource package includes design schematics, a bill of materials, assembly manuals and basic operating software code. On the software side licences differ per repository: URDF simulation models ship under Apache-2.0, the SDK documentation under MIT, and the deployment and reinforcement learning frameworks under LGPL-3.0. That distinction matters in practice: Apache-2.0 permits use of the model inside a closed product, while LGPL-3.0 imposes an obligation to share modifications to the linked code. Teams considering deriving a commercial product need to account for that difference from the start.
Running and stair climbing demand two things: adequate peak torque and low gear backlash. Peak torque is 144 N·m, and for a 39 kg body that is enough to produce the correction needed the moment a foot lands. Keeping backlash under 10 arcmin is the less discussed but more decisive figure: as backlash grows, a dead zone opens between joint command and actual position, and high-frequency balance corrections are lost inside it. Dual encoders at 16-bit and 14-bit make that error measurable.
| Feature | Fourier N1 | Unitree G1 | Fourier GR-2 |
|---|---|---|---|
| Height | 130 cm | 132 cm | 175 cm |
| Weight | 38 kg | 35 kg | Approximately 63 kg |
| Degrees of freedom | 23 | 23 (EDU: 43) | 29 |
| Peak joint torque | 144 N·m | Published per joint | 436 N·m |
| Battery | 475 Wh, over 2 hours | 9000 mAh | Approximately 950 Wh |
| Open source | Hardware package and URDF published | Open SDK, closed hardware | Open hardware interface |
| Status in Turkey | Sourcing enquiry | Orderable | Sourcing enquiry |
The N1's value comes less from the body itself than from the documentation that ships with it. Publishing design schematics, a bill of materials and assembly manuals lets a university laboratory swap parts, try its own actuator or partly rebuild the body; none of that is possible on a closed platform. Twenty-three degrees of freedom and the absence of a head joint show clearly that the body is focused on locomotion research. On the university and R&D side, the counterpart deliverable in Turkey today is the Unitree G1; the G1 EDU reaches up to 43 degrees of freedom but its hardware package is not open.
Supply model
Supply to Turkey is planned per project; import, delivery and commissioning scope are itemised in the quote.
Pre-sales assessment
Site and mission focused technical feasibility; specification and administrative process support.
Demo and site visit request
Send a demo request; availability and scope are settled in the call.
Source documents
Technical values come from the manufacturer's documents; verified on 18 September 2026. 7 documents at the bottom of the page.
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The most common questions about the Fourier N1.
Sourcing, delivery schedule and investment for the N1 are settled per project. If you have a corporate or academic requirement you can talk to Robotlar.org: we assess the sourcing process, a realistic timeline and the alternatives deliverable today.
The product page states 130 cm in height, 38 kg in weight, a maximum speed of 3.5 m/s, a two-hour battery and 23 degrees of freedom. The product brochure gives dimensions of 1245 × 441 × 202 mm, a net weight under 39 kg, a 1240 mm arm span, a 2.7 km/h walking speed and a 10.8 km/h running speed. On the joint side, peak torque is 144 N·m, peak current 70 A, backlash under 10 arcmin and dual encoders at 16-bit and 14-bit. The battery is 475 Wh lithium-ion under 3.2 kg, charging in approximately 3.5 hours. The processor is an Intel Core i7-13700H with 16 GB of memory and 512 GB NVMe on Ubuntu 20.04.
The published hardware resource package includes design schematics, a bill of materials, assembly manuals and basic operating software code. In the software repositories the licence varies with content: URDF simulation models ship under Apache-2.0, the SDK documentation under MIT, and the deployment and reinforcement learning frameworks under LGPL-3.0. Teams considering deriving a commercial product should evaluate that licence difference from the start.
Both are research-class bodies of similar size: the N1 at 130 cm and 38 kg, the G1 at 132 cm and 35 kg, both starting at 23 degrees of freedom. The difference sits in two places. The N1's hardware resource package is published, so parts can be swapped and the body rebuilt. The G1 can be ordered in Turkey today, delivered within 4-6 weeks with a 1-year official warranty, central service and a remote/on-site technical support protocol (SLA), and its EDU edition reaches up to 43 degrees of freedom. For a team that will not modify the hardware, deliverability is the deciding factor.
