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Spirit AI (officially Spirit AI (Hangzhou) Technology Co., Ltd.; Chinese: 千寻智能; Qianxun Intelligence) is a Chinese robotics company headquartered in [[Hangzhou]], [[Zhejiang]], [[China]], specializing in embodied intelligence robots and [[vision-language-action model]]s. Founded in February 2024 by Han Fengtao, Spirit AI develops general-purpose humanoid robots and the foundation models that control them. The company's flagship products include the [[Moz1]] humanoid robot and the Spirit v1.5 embodied intelligence foundation model, which achieved the top ranking on the RoboChallenge real-world robotics benchmark in January 2026.
Spirit AI was founded in February 2024 by Han Fengtao, who previously served as CTO of LuoShi Robotics. The company is based in Hangzhou, the capital of Zhejiang Province in eastern China.[1]
The company progressed through multiple funding rounds in rapid succession:
In June 2025, Spirit AI officially released the [[Moz1]] humanoid robot, described as China's first robot possessing a "truly multi-task continuous generalization embodied model."[3]
On December 17, 2025, Spirit AI's robot "Xiao Mo" was deployed in the world's first humanoid robot power battery production line at [[CATL]]'s Zhongzhou Base. This represented one of the earliest deployments of a humanoid robot in battery manufacturing.[4]
In January 2026, Spirit AI's Spirit v1.5 embodied intelligence foundation model ranked first on the RoboChallenge real-world robotics benchmark, with a total score of 66.09 and a task success rate of 50.33 percent. This surpassed the pi0.5 model developed by US-based [[Physical Intelligence]], establishing Spirit AI as a global leader in embodied AI model performance. The Spirit v1.5 model was simultaneously open-sourced.[5]
In February 2026, Spirit AI raised approximately $290 million in back-to-back funding rounds, further accelerating its development.[6]
The [[Moz1]] is Spirit AI's flagship humanoid robot.
| Specification | Details |
|---|---|
| Degrees of Freedom | 26 (excluding dexterous hand) |
| Joint Type | Self-developed integrated force control |
| Power Density | Highest in industry (claimed) |
| Load-to-Weight Ratio | 1:1 |
| Teleoperation | Zero-latency full-body |
| Target Applications | Logistics, industrial, battery manufacturing |
| Released | June 2025 |
The Moz1 features self-developed integrated force control joints claimed to have the world's highest power density. The robot achieves the highest industry standards in speed, accuracy, safety, and biomimetic force control.[3]
Moz1 is paired with Spirit AI's self-developed multi-dimensional data collection device, which enables efficient data collection to support hourly model iterations. The zero-latency full-body teleoperation capability allows human operators to demonstrate tasks that are then used to train the robot's AI models.[3]
Spirit v1.5 is Spirit AI's embodied intelligence foundation model.
| Metric | Details |
|---|---|
| RoboChallenge Score | 66.09 |
| Task Success Rate | 50.33% |
| Ranking | #1 globally (January 2026) |
| License | Open-source |
| Compared Against | Physical Intelligence pi0.5 |
The Spirit v1.5 model processes visual input, understands tasks, and generates motor commands for the robot to execute. Its top ranking on the RoboChallenge benchmark, which tests robots on real-world manipulation tasks, demonstrated that Spirit AI's approach to embodied AI achieved world-leading performance.[5]
Spirit AI's core technologies include:
Spirit AI's robot "Xiao Mo" was deployed at [[CATL]]'s Zhongzhou Base on December 17, 2025, operating on the world's first humanoid robot power battery production line. This deployment demonstrated the Moz1's ability to operate in a demanding industrial environment where precision and safety are critical.[4]
| Round | Amount | Date |
|---|---|---|
| Angel | ~200 million yuan | August 2024 |
| Angel+ | Undisclosed | November 2024 |
| Pre-A+ | ~600 million yuan | July 2025 |
| Back-to-Back Rounds | ~$290 million total | February 2026 |