Seedance 2.5 (https://www.pwz.com/models/seedance-2-5)is a new multimodal AI audiovisual generation model focusing on long narrative content. It produces continuous video clips and supports multi-round extension. It accepts images, videos, audio and other references to keep consistent characters, product appearances, visual styles and camera language. It supports timestamp-guided local editing that modifies target areas while preserving original camera movement and rhythm. Built on native audiovisual joint architecture, it generates synchronized audio, reduces character distortion and choppy motion with strong prompt compliance. It serves professional production including brand videos, e-commerce clips, short drama previsualization and educational animations.