Long video generation blog: How We Shipped SVI in Production

In Part 1 , we surveyed six approaches to long video generation — TTT, LoL, Self Forcing, Self Forcing++, Infinite Talk, and Helios — and landed on SVI as the only path that ships today without retraining a 14B model. This post is about what building with it actually looked like: how the clip-stitching loop works, why Error-Recycling matters, and the production numbers from our first deployment on TurboWan. The choice: SVI (Stable Video Infinity) SVI's core philosophy is to turn infinite-length