X Square Robot

X Square Robot (自变量机器人, transliterated "Zibianliang Robot") is a Shenzhen, China-based embodied AI and robotics startup founded in December 2023, developing end-to-end large-model-driven general-purpose robots. Founder and CEO Wang Qian leads the company's push to build a full-stack technology stack spanning data collection, foundation models, dexterous hardware, and wheeled-humanoid robot platforms.

Its core products include the WALL series of embodied AI foundation models (with WALL-OSS released as open source), the QUANTA X1 Pro (a bimanual research platform) and X2 (a wheeled humanoid robot with 62 degrees of freedom), the ArtiXon dexterous hand, and the TwinDEX robot-free data-collection framework for training manipulation models without a physical robot. The company has moved from research demonstrations toward commercial deployment, including a household-cleaning-robot partnership distributed via classifieds platform 58.com, a joint venture with automaker Jinbei Auto, and a parcel-sorting demonstration reported at roughly 1,816 parcels per hour.

X Square Robot raised approximately $140 million in a Series A+ round in September 2025 led by Alibaba Cloud, followed by a further approximately $140 million Series A++ round in January 2026 led by ByteDance, and an approximately $276 million Series B round in April 2026 led by Xiaomi's investment arm, together with repeat backer HongShan (the renamed Sequoia China). Reporting on the Series B round put the company's valuation at $2.8 billion by mid-2026, and in July 2026 the company completed a further Series C round with IDG Capital participating, which it described as the fourth in a series of consecutive financing rounds, keeping its valuation above $2.8 billion. In August 2026, sources told the South China Morning Post that X Square Robot had submitted a confidential filing for a Hong Kong initial public offering; as of this research the company remains privately held with no public listing completed.