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Chinese AI startup Sand.ai hits $1 billion valuation with $200 million series A extension round
Sand.ai raised $200 million at a $1 billion valuation, bringing its 10-month total to $300 million. Its VidMuse service hit $10 million in annual recurring revenue within two months of launch.
Sand.ai, a Beijing-based AI video generation startup, has closed a $200 million Series A extension, pushing its valuation past $1 billion and securing unicorn status. The round marks the company's third fundraise in 2026 and brings its 10-month total to $300 million - a rapid capital accumulation that signals strong investor conviction in generative video tools for commercial creative work.
Chinese investment firm CoStone Capital and Shenzhen-listed IT infrastructure company Wangsu Science & Technology jointly led the deal. The round also drew state-backed investors including Pudong Venture Capital Group and an investment arm of Shanghai International Group, alongside returning backers iMPC (formerly Matrix Partners China), CAS Star, and HyT Capital.
From research to revenue in under two months
Founded in early 2024 by Tsinghua PhD graduate Cao Yue, Sand.ai builds generative video models designed to cut production costs and speed up turnaround times. Its model lineup includes Magi-1, an autoregressive video generation model; GAGA-1 for simultaneous audio-visual generation; and MAGI-2 Preview, released as open-source research.
On the product side, the company's paid AI video creation service VidMuse - which offers tools for music videos, product ads, and anime dramas - hit an annual recurring revenue of over $10 million within two months of its January launch. That quick commercial traction sets Sand.ai apart from AI startups still searching for a revenue model. The company plans to invest the fresh capital in video foundation model R&D, inference infrastructure, product iteration, and global expansion, and said it will release the official version of MAGI-2 soon.
A founder with a fast exit in his past
Cao previously co-founded AI company Light Year with Meituan co-founder Wang Huiwen in February 2023. Meituan acquired Light Year just four months later for $281 million. Wang's family office, Lollapalooza Capital, was among Sand.ai's earlier investors, alongside IDG Capital, Baidu Ventures, and Sinovation Ventures, led by former Google China head Kai-Fu Lee.
The Series A+ round closed less than five months after Sand.ai raised over $100 million across two earlier rounds. The mix of industry capital, government funds, and both yuan- and dollar-denominated investors reflects the broad-based backing Chinese AI startups are attracting in the generative video space.
Why this matters for creatives, marketers, and writers
Sand.ai's trajectory shows that AI-generated video is moving from experimental demos to paid, recurring revenue products. For marketing teams, PR professionals, and content creators, VidMuse's $10 million ARR figure suggests production-grade tools for ads, music videos, and episodic content are already finding paying customers. The open-source MAGI-2 Preview also signals that accessible Text to Video AI Courses and workflows built on these models may arrive faster than expected. When a startup raises $200 million to scale video generation infrastructure, the cost and speed barriers that once kept professional-grade video production out of reach for smaller teams are shrinking - and the tools to learn AI video creation are becoming a practical necessity, not a speculative bet.