Runway couldn't fix a bug in its AI video model, so it turned the bug into a feature

TL;DR AI
2 min readKey summary
Runway struggled to fully fix an avatar-centering bug in its real-time AI video model, so it shipped a product-side workaround instead.
The company said it uses cross-functional evaluation workshops to decide when a model is ready to ship.
Its eval process includes broad and edge-case test sets, spreadsheet-based tracking, and LLM-assisted grading.
The episode highlights how AI teams can combine lightweight tooling and front-end fixes to ship reliable real-time products.
