Zeroth Bridge
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Zeroth Bridge is a compact, open humanoid robot from Zeroth, the Suzhou company behind the Jupiter, Sean and W1 home robots. Launched on September 2, 2026 together with OpenBridge, Zeroth's open-source ecosystem, it is built as a one-person physical AI lab for developers, universities and research teams. Standing 88 cm tall and weighing about 13 kg, Bridge walks on two legs, avoids obstacles and performs natural, human-like moves and choreography powered by Zeroth's FlowMimic motion stack, from squats and lunges to an aerial backflip. Its 21 joints are driven by Zeroth's own high power-density actuators, and its short arms end in two-finger grippers that handle objects of up to 2 kg. With Tele_Bridge, an operator can drive the whole body in real time through motion capture or a VR headset, which makes Bridge a tool for collecting training data as well as running learned skills. Zeroth publishes the robot's mechanical CAD, electrical topology and joint tables on GitHub under GPL-3.0, while the OpenBridge Robot, Skill and Simulation Hubs let developers share drivers, reusable skills and training pipelines.
Quick Overview & Key Facts
Zeroth Bridge is a humanoid robot made by Zeroth in China, launched in 2026 and built for physical AI research, reinforcement learning and imitation learning, and teleoperated data collection. Its estimated price is USD 3,999.
- Weight
- ≈ 13 kg
- Mobility
- Bipedal (legged) humanoid
- Payload capacity
- Small objects of up to 2 kg held in the two-finger gripper
- Sensors
- IMU; circular microphone array; capacitive touch sensing; motor-internal joint feedback (camera and LiDAR interfaces reserved)
- Operating environment
- Indoor (labs, classrooms, offices, demonstrations)
What Can Zeroth Bridge Do?
Core operational tasks and activities demonstrated or performed by Zeroth Bridge.
Real-World Applications of Zeroth Bridge
Industries, working environments, and deployment suitability for Zeroth Bridge.
Zeroth Bridge Capabilities
Inherent physical, perceptual, and cognitive abilities built into Zeroth Bridge.
Image Gallery
Below images are from Zeroth's official sources
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Robot Specifications
Values without a Confirmed badge are compiled from public sources and may not be manufacturer-verified.
Not yet published by Zeroth: warranty terms, EMC compliance, IP rating, noise level, expected lifespan, maintenance schedule, firmware version, pet safety and 2 more.
Robot Timeline
Key milestones in this robot's development and rollout
Zeroth publishes the BRIDGE research paper, an open-source 80 cm-class humanoid platform built through morphology and control co-design for physical AI.
Source: Zeroth OpenBridge ↗
Zeroth launches Bridge with the OpenBridge open-source ecosystem and the Bridge Builder Program, and opens global booking for the first batch of the Bridge Geek Edition.
Source: Robotics Tomorrow ↗
Zeroth publishes the Bridge hardware snapshot on GitHub, with native CAD, a full-body STEP model and the electrical topology under GPL-3.0.
Source: Zeroth OpenBridge (GitHub) ↗
Zeroth Bridge vs StarBot Spark, Q1, NIX and K1 Geek Humanoid
Zeroth Bridge overlaps with these alternatives on Entertainment and events and Education and training. Zeroth Bridge leads this group on weight.
Industries and capabilities are tags, not scores: a tick means the robot is listed for it. Green marks the best figure in a row (lowest weight). Ranges are not ranked.
| Spec | Zeroth BridgeZeroth | StarBot SparkStarBot | Q1PrimeBot | NIXLumos Robotics | K1 Geek HumanoidBooster Robotics |
|---|---|---|---|---|---|
| Industries | |||||
| Entertainment and events | Yes | No | Yes | No | No |
| Education and training | Yes | Yes | Yes | Yes | Yes |
| Research and development | Yes | Yes | Yes | Yes | Yes |
| Capabilities | |||||
| Developer friendly | Yes | Yes | Yes | No | Yes |
| Walking | Yes | Yes | No | Yes | Yes |
| Whole-body control | Yes | No | No | No | Yes |
| Grasping | Yes | No | No | No | Yes |
| Weight | 13 kg | 15.88 kg | 15 kg | 20 kg | 19.5 kg |
| Released | 2026 | 2026 | 2026 | 2026 | 2025 |
Notes such as conditions or alternate figures are left out and values are shown in common units; open each page for the full specs. Browse all Humanoid Robots
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Frequently Asked Questions
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Q1. What is Zeroth Bridge, and what problem is it designed to solve?
Zeroth Bridge is a small, open humanoid robot from Zeroth. It gives developers and researchers a complete physical AI lab in one compact robot.
Q2. What are the main capabilities and key features of Zeroth Bridge?
It walks on two legs, avoids obstacles, performs natural human-like moves and choreography, and can be driven in real time through motion capture or a VR headset.
Q3. Who is Zeroth Bridge built for, and which industries can benefit from it?
It is built for universities, research teams, robotics developers and educators who want to train and test robot skills on real hardware.
Q4. Is Zeroth Bridge a commercial product or still a research prototype?
It is a commercial developer product: the first batch of the Bridge Geek Edition is sold through the Zeroth OpenBridge store.
Q5. Is Zeroth Bridge currently available for purchase, and when is it expected to ship?
Yes. Zeroth opened global booking through its OpenBridge store, and pricing varies by region.
Q6. How does Zeroth Bridge actually work in real-world environments?
Zeroth's own actuators and the FlowMimic motion stack drive the whole body, while developers deploy their own skills through the open SDK and motion-control APIs.
Q7. When was Zeroth Bridge announced or officially launched?
Zeroth launched it in September 2026, together with the OpenBridge ecosystem.
Q8. How is Zeroth Bridge different from other robots in the same category?
Its hardware designs, drivers and skills are shared openly, so owners can study, modify and build on the robot instead of working with a closed system.
Q9. Does Zeroth Bridge require additional development or customization after purchase?
It runs built-in skills out of the box, and developers can add new ones through OpenBridge or reuse skills shared by the community.
Q10. What is the future roadmap or planned upgrades for Zeroth Bridge?
Zeroth keeps publishing new hardware snapshots, skills and simulation tools through the OpenBridge hubs and is growing the program with the Bridge Builder community.
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