
Seedance 2.5 Omni Reference
Commercial useseedance-2.5-omni-referenceGeneration input
Prompt describing the target video, style, dynamics, and atmosphere.
Output video resolution.
Video duration from 4 to 30 seconds, or -1 for automatic selection.
Output aspect ratio.
Generate synchronized audio with the video. Disabled by default; enable only when the prompt describes original sound or you provide authorized reference audio.
Reference mediaOptional
Reference image URLs (max 30). Every image is uploaded to the virtual asset library before generation.
Reference video URLs (max 10; total duration ≤30s). Each video is uploaded to the virtual asset library before generation.
Reference audio URLs (max 10; total duration ≤30s). Never uploaded to the asset library.
Creative direction
Smart Director Mode
Add an image, first frame, video, or audio reference first.
More technical options
Structured reference images: [{ url }]. Alternative to reference_image_urls; every image uses virtual asset ingest.
Portrait URLs always uploaded to the virtual portrait library before generation.
Portrait URLs (including real-person photos) uploaded to the virtual portrait library before generation.
Return the generated video's last frame. Cannot be true when draft=true.
Video output format.
Enable online search for the generation.
Omni Reference testing notes
All reference images and videos are automatically uploaded to the virtual asset library; reference_audio_urls stays direct. Reference slots in prompt with @image1, @video1, @audio1.
