Seedance 2.5 30s - AI Platform

POST

videos

curl --request POST \
  --url https://sigrunai.com/v1/videos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "seedance2.0-md",
  "prompt": "城市夜景延时，车流光轨",
  "duration": 10,
  "aspect_ratio": "16:9"
}
'

{
  "code": 20000,
  "msg": "<string>",
  "data": {
    "task_id": "<string>",
    "status": "<string>",
    "progress": 123,
    "model": "<string>",
    "created_at": 123,
    "completed_at": 123,
    "cost": 123,
    "error_message": "<string>",
    "result": {
      "image_url": "<string>",
      "video_url": "<string>"
    }
  }
}

Create a Seedance 2.5 30s video via POST /v1/videos with model set to seedance2.5-30s. Poll Query video task for result.video_url.

Model

`model`	Billing	Duration
`seedance2.5-30s`	`per_task`	Fixed 30 seconds

If you send duration, it must be 30; otherwise it defaults to 30. First/last frame is not supported.

Request body

Field	Type	Required	Description
`model`	string	yes	`seedance2.5-30s`
`prompt`	string	yes	Max 5000 characters
`aspect_ratio` / `ratio`	string	no	`16:9` or `9:16` only; default `9:16`
`images` / `reference_images`	string[]	no	Up to 30 images
`videos` / `reference_videos`	string[]	no	Up to 10 videos
`audios` / `reference_audios`	string[]	no	Up to 10 audios

Use public https:// URLs only.

Example

curl -X POST 'https://sigrunai.com/v1/videos' \
  -H 'Authorization: Bearer sk_xxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "seedance2.5-30s",
    "prompt": "A cat running on grass, tracking shot",
    "aspect_ratio": "9:16",
    "images": ["https://example.com/cat.png"]
  }'

Authorizations

Authorization

string

header

required

API key from the console. Format: Bearer sk_xxx

Body

application/json

model

string

required

seedance2.0-md 或 seedance2.5-30s

Example:

"seedance2.0-md"

prompt

string

required

duration

seedance2.0-md：5/10/15；seedance2.5-30s：固定 30

seconds

duration 别名

aspect_ratio

string

ratio

string

aspect_ratio 别名

orientation

string

portrait/landscape 可推导比例

size

string

images

string<uri>[]

reference_images

string<uri>[]

videos

string<uri>[]

reference_videos

string<uri>[]

audios

string<uri>[]

reference_audios

string<uri>[]

Response

200 - application/json

提交成功

code

integer

Example:

20000

msg

string

data

object

Show child attributes

Last modified on October 15, 2026

⌘I

curl --request POST \
  --url https://sigrunai.com/v1/videos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "seedance2.0-md",
  "prompt": "城市夜景延时，车流光轨",
  "duration": 10,
  "aspect_ratio": "16:9"
}
'

{
  "code": 20000,
  "msg": "<string>",
  "data": {
    "task_id": "<string>",
    "status": "<string>",
    "progress": 123,
    "model": "<string>",
    "created_at": 123,
    "completed_at": 123,
    "cost": 123,
    "error_message": "<string>",
    "result": {
      "image_url": "<string>",
      "video_url": "<string>"
    }
  }
}

​Model

​Request body

​Example

Authorizations

Body

Response

Model

Request body

Example