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POST
/
v3
/
async
/
seedance-v1-lite-i2v
Seedance V1 Lite Image-to-Video
curl --request POST \
  --url https://api.myrouter.ai/v3/async/seedance-v1-lite-i2v \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "prompt": "<string>",
  "image": "<string>",
  "resolution": "<string>",
  "aspect_ratio": "<string>",
  "last_image": "<string>",
  "camera_fixed": true,
  "seed": 123,
  "duration": 123
}
'
{
  "task_id": "<string>"
}
Seedance V1 Lite is an AI video model designed to generate coherent multi-shot videos with smooth motion and precise adherence to detailed prompts. It supports resolutions of 480p, 720p, and 1080p.

​
Request Headers

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Content-Type
string
required
Enum: application/json
​
Authorization
string
required
Bearer authentication format: Bearer {{API Key}}.

​
Request Body

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prompt
string
Text prompt for video generation; positive text prompt; supports Chinese and English, recommended not to exceed 500 characters.
​
image
string
required
Input image supports URL and Base64 formats.
  • Image formats: jpeg, png, webp, bmp, tiff, gif.
  • Image file size must not exceed 30MB.
  • The short side of the image must be greater than 300 pixels, and the long side must be less than 6000 pixels.
  • Aspect ratio must be between 0.4 and 2.5.
​
resolution
string
required
Video quality. Acceptable values: 480p, 720p, 1080p
​
aspect_ratio
string
default:"16:9"
Aspect ratio of the generated video. Acceptable values: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16
​
last_image
string
End frame image, supports URL and Base64 formats.
  • Image formats: jpeg, png, webp, bmp, tiff, gif.
  • Image file size must not exceed 30MB.
  • The short side of the image must be greater than 300 pixels, and the long side must be less than 6000 pixels.
  • Aspect ratio must be between 0.4 and 2.5.
The first and last frame images can be the same. When the aspect ratios of the first and last frame images differ, the first frame image takes priority, and the last frame image will be automatically cropped to match.
​
camera_fixed
boolean
default:false
Determines whether the camera position should remain fixed.
​
seed
integer
Random seed for generation. -1 means a random seed will be used.
​
duration
integer
default:5
Specifies the length of the generated video in seconds. Available options: 5, 10

​
Response

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task_id
string
required
The task_id of the async task. Use the task_id to call the Get Async Task Result API to retrieve the generated result.