Video foundation model startup Sand.ai secures RMB 200 million in Series A+ funding

On 11/05/2026, Sand.ai, a video foundation model company, announced the close of its A+ funding round. The disclosed size of the round is inconsistent across sources: the headline reports $30M (about CNY 200M), while the body of the same piece puts the figure at $200M in USD, without reconciling the two. Cornerstone Capital and Wangsu Science & Technology co-led the round. Investors participating included Time Capital, Panlin Capital, and Dongzheng Capital; Tianchuang Capital took part strategically alongside Shandong Iron & Steel Industrial Investment and Shandong Railway Fund. Shanghai state-backed backers such as Pudong Venture Capital and Shanghai Guofang joined as well, and prior shareholders Matrix Partners China, Huaye Tiancheng, and CAS Star continued to increase their holdings. The company described the round as drawing together industrial capital, RMB- and USD-denominated funds, and Shanghai state-owned capital. The proceeds are intended to accelerate research and development of the company's video generation models and to speed up technical iteration. The public record stops there: no further details on closing mechanics, post-money valuation, or fund disbursement have been disclosed in the available material.