| Request Id | string | Seedance 2.0 vídeo ID. | cab9517f-1818-4910-8d66-292701c78c2d |
| Prompt | string | Optional prompt to guide the extension. Reference additional images with @image2…@image9, videos with @video1…@video3, and audio with @audio1…@audio3 — the source video's last frame is always @image1. | |
| URLs de imagen | array | Up to 8 additional reference image URLs (JPEG/PNG/WebP). Each Nth image corresponds to @image(N+1) in the prompt (the source video's last frame is @image1). | undefined |
| Video Reference URLs | array | 3 vídeo URL (MP4, 15 ) . N vídeoprompt @videoN. | undefined |
| Audio Reference URLs | array | Up to 3 reference audio clip URLs (MP3/WAV, total max 15s). Each Nth audio corresponds to @audioN in the prompt. | undefined |
| Relación de aspecto | Opciones permitidas (6) | Output video aspect ratio (only used when reference images/videos/audio are provided). | 16:9 |
| Resolución | Opciones permitidas (2) | Output resolution. Price scales with resolution: 720p is cheapest, 1080p is most expensive. | 720p |