Seedance 2 is a ByteDance-developed multi-modal AI platform for generating professional-quality short videos from text prompts, images, audio, and reference videos. Users can upload multiple inputs (images, short videos, audio) and use natural-language references to control motion, camera moves, effects, and characters. The system supports text-to-video, image-to-video, video extension, multi-shot storytelling, and built-in audio generation—producing watermark-free clips between 4 and 15 seconds in various aspect ratios and up to 2K resolution.