Video generation foundation model company Sand.ai completes US$200 million Series A+ round, reaching US$300 million in cumulative funding over 10 months

According to TechFlow, on November 6, Sina Tech reported that video generation foundation model company Sand.ai announced the completion of a US$200 million Series A+ round. This marks the company's third funding round completed in 2026, bringing its cumulative funding to US$300 million over 10 months. The round was co-led by Co-Stone Capital and Wangsu Technology, with participation from Times Capital, Panlin Capital, Orient Securities Capital, and others. Tianchuang Capital participated strategically alongside Shandong Railway Industrial Investment and Shandong Railway Fund. Shanghai state-backed institutions such as Pudong Venture Capital and Shanghai Guofang also joined, while existing shareholders including Matrix China, Huaye Tiancheng, and CAS Star continued to increase their stakes.

Proceeds will be primarily used for video foundation model R&D, training and inference infrastructure development, product iteration, and global market expansion. The official version of the company's next-generation video generation foundation model MAGI-2, featuring a larger-parameter MoE architecture, will also be released soon.

In August this year, Sand.ai released and open-sourced MAGI-2 Preview. The model has approximately 114B total parameters and activates approximately 6B parameters per forward pass. After distillation, the inference cost of generating a 10-second 1080P video is only CNY 0.5. At launch, the model ranked sixth globally on Artificial Analysis's image-to-video leaderboard. In addition, the company's video generation product VidMuse surpassed US$10 million in ARR within two months of launch.

Co-Stone Capital, the largest financial investor in this round, has previously invested in AI companies such as ChangXin Memory Technologies, SenseTime, and 4Paradigm.

Source: TechFlow