Seedance 1
ByteDance video model producing 5 to 10-second motion animations from text or image prompts across Lite, Fast, and Pro tiers.
| Property | Value |
|---|---|
modelSlug | seedance-1 |
| Kind | Video |
| Maker | ByteDance |
Copies per request (variations) | 1 to 5 |
| How the cost is counted | per second of output (from duration), at a rate that depends on tier and resolution |
| Over MCP | yes, with the generate tool |
Credit amounts are left out because they change. The lowest price is creditCost on GET /v1/models, and POST /v1/jobs answers with the exact creditCost of a request.
input fields
Send the fields below inside the input object. A field you leave out takes its Default. Unknown field names are dropped without an error, so check the spelling if a setting seems to have no effect.
| Field | Type | Required | Default | Rules |
|---|---|---|---|---|
prompt | string | yes | – | Up to 10,000 characters |
tier | string (one of) | – | lite | lite, fast, pro |
reference_images | string[] (image upload ids) | – | – | First frame. One file at most |
aspect_ratio | string (one of) | – | 16:9 | 16:9, 9:16, 4:3, 3:4, 1:1, 21:9, 9:21 |
resolution | string (one of) | – | 720p | 480p, 720p, 1080p |
duration | string (one of) | – | 5 | 5, 10 |
Rules by setting
This model runs a different version depending on what you send. The rules below are checked before any credits move; a request that breaks one is refused with 400 and a message naming the field.
tier = lite and without a reference file
- Takes no files in
reference_images; a request that fills one is refused. aspect_ratiotakes only16:9,4:3,1:1,3:4,9:16,9:21.
tier = lite and with a reference file
aspect_ratiois not used; any value sent is ignored.reference_images: required; one file; at most 10 MB per file.
tier = pro and without a reference file
- Takes no files in
reference_images; a request that fills one is refused. aspect_ratiotakes only21:9,16:9,4:3,1:1,3:4,9:16.
tier = pro and with a reference file
aspect_ratiois not used; any value sent is ignored.reference_images: required; one file; at most 10 MB per file.
tier = fast and with a reference file
aspect_ratiois not used; any value sent is ignored.reference_images: required; one file; at most 10 MB per file.resolutiontakes only720p,1080p.
Example request
{
"modelSlug": "seedance-1",
"input": {
"prompt": "The camera circles slowly around a steaming cup of coffee on a wooden table"
}
}