Creative studioGeneratedModels
Seedance 2.0 Fast
Creative Studio video model reference for the public API.
Seedance 2.0 Fast
Public model ID: seedance-20-fast
Asset type: video
Category: Video Generation
Starting credits: 5 (defaults: 10)
Prompt required.
Start a generation
curl -s -X POST "$API_BASE_URL/v1/creative-studio/generations" \
-H "Authorization: Bearer vsl_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"modelId": "seedance-20-fast",
"prompt": "Your prompt here",
"image": ["https://example.com/reference.jpg"],
"duration": 5
}' | jqPoll GET /v1/creative-studio/generations/{id} until status is completed. Completed generations return outputUrl on cdn.videoslash.com.
Media parameters
| Name | Type | Constraints | Default | Description |
|---|---|---|---|---|
image | string | optional · max items: 1 | — | Input image for image-to-video generation (first frame). Cannot be combined with reference images. |
last_frame_image | string | optional · max items: 1 | — | Input image for last frame generation. Only works if a first frame image is also provided. Cannot be combined with reference images. |
reference_images | array | optional · max items: 9 | [] | Reference images (up to 9) for character consistency, style guidance, and scene composition. Cannot be used together with first/last frame images. You can reference them in your prompt as [Image1], [Image2], etc. |
reference_videos | array | optional · max items: 3 | [] | Reference videos (up to 3, total duration max 15s) for motion transfer, style reference, and editing. Reference them in your prompt as [Video1], [Video2], etc. |
reference_audios | array | optional · max items: 3 | [] | Reference audio files (up to 3, total duration max 15s) for audio-driven generation and lip-sync. Requires at least one reference image or video. Reference them in your prompt as [Audio1], [Audio2], etc. |
Settings parameters
| Name | Type | Constraints | Default | Description |
|---|---|---|---|---|
duration | integer | optional · min: -1 · max: 15 | 5 | Video duration in seconds. Set to -1 for intelligent duration (model picks the best length). |
resolution | enum | optional · enum: 480p, 720p | 720p | Video resolution. |
aspect_ratio | enum | optional · enum: 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, 9:21, adaptive | 16:9 | Video aspect ratio. Set to 'adaptive' to let the model choose the best ratio based on inputs. |
generate_audio | boolean | optional | true | Generate synchronized audio with the video, including dialogue (use double quotes in prompt), sound effects, and background music. |
seed | integer | optional | — | Random seed. Set for reproducible generation. |