The week of March 30 – April 5, 2026 crystallized one of the biggest power shifts in AI video to date. With Sora's shutdown now official and its user base scattering to competitors, the rest of the industry moved fast — Google launched a budget-friendly video API, Runway bet $10 million on a new startup ecosystem, and SAG-AFTRA floated a radical tax proposal that could reshape how studios think about synthetic performers.