Seedance 2.5 is an AI video generator that creates up to 30 seconds of continuous video clips. It allows users to combine up to 50 multimodal references, including images, videos, and audio, to generate videos. The product is designed for creators who need longer video results, more reference control, and a cleaner path from prompt to usable clip. It provides features such as 30-second seamless output and richer reference inputs.