Seedance 2.5

Seedance 2.5 is ByteDance's video generation model, with dedicated official access through Dreamina. It generates native clips of up to 30 seconds (twice as long as Seedance 2.0, with a beta mode of up to 180s) in a single pass with synchronized audio and video, supports up to 50 input references in the same generation (characters, brand, shot-by-shot), and allows local frame editing to fix only the part of the image that's wrong without regenerating the whole clip. Released on July 31, 2026.