Zhidx (WeChat official account: zhidxcom) Author | Yang Jingli Editor | Li Shuiqing Zhidx reported on November 5 that today, Sand.ai (Sandai Technology), a Shanghai-based video generation foundation model startup, announced the completion of US$200 million (approximately RMB 1.334 billion) in a Series A+ funding round. This was the third funding round the company completed in 2026, bringing its cumulative fundraising over 10 months to US$300 million (appro