ByteDance: Seedance 2.0 Fast API

Doubao-Seedance-2.0-Fast is ByteDance's high-efficiency flagship video generation model, designed to deliver cinematic quality with near-instant responsiveness. It features a unique Quad-Modal Reference System, allowing the simultaneous integration of text, images, videos, and audio as creative anchors. Unlike traditional models, Seedance 2.0 employs an Auto-Storyboarding mechanism that can decompose a single narrative prompt into multiple coherent shots with synchronized native sound effects and multi-lingual lip-sync. The "Fast" variant (260128) is specifically optimized for high-concurrency API environments, balancing 2K resolution output with significant reductions in inference latency.