TMTPOST — Video generation startup Sand.ai has completed a $200 million Series A+ financing round. The round was jointly led by Keystone Capital and Wangsu Science & Technology. Participants included Shidai Capital, Panlin Capital, Dongzheng Capital, Tianchuang Capital together with Shandong railway industrial funds, Pudong Venture Capital, Shanghai Guofang, and existing shareholders Matrix Partners China, Huaye Tiancheng and CAS Star. This marks the company’s third round in 2026, bringing cumulative funding to $300 million over 10 months and unicorn status. Proceeds will support video foundation model research, training and inference infrastructure, product iteration and global expansion. The company plans to release the formal version of its larger-parameter MoE video generation model MAGI-2 soon.