Seedance 1.0 Pro

POST/v1/run

Seedance 1.0 Pro is Bytedance's image-to-video AI model. Bring static images to life with fluid animation, consistent character motion, and professional-grade video output.

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to bytedance/seedance/1.0/pro/image-to-video.

Default: bytedance/seedance/1.0/pro/image-to-video

stringpromptrequired

The text prompt used to generate the video

stringimagerequired

The URL of the image used to generate video

Optional<string>end_image

The URL of the image the video ends with. Defaults to None.

Optional<string>resolution

Video resolution - 480p for faster generation, 720p for balance, 1080p for higher quality

Allowed values: 480p, 720p, 1080p

Default: 1080p

Optional<integer>duration

Duration of the video in seconds

Allowed values: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

Default: 5

Optional<boolean>camera_fixed

Whether to fix the camera position

Default: false

Optional<string>aspect_ratio

The aspect ratio of the generated image.

Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16

Optional<integer>seed

Random seed to control video generation. Use -1 for random.

Response Schema

The submit endpoint returns an accepted generation task. Poll the result endpoint with the returned id for terminal outputs or errors.

Optional<string>error

Error message if the task failed. Empty on success.

stringidrequired

Unique identifier for the generation task.

Optional<string>model

Model ID used for the prediction.

Optional<array>outputs

Array of generated content. Empty when status is not completed.

stringstatusrequired

Status of the task: pending, running, completed, failed, or timeout.

Allowed values: pending, running, completed, failed, timeout

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-video

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async

# 1. Submit a generation request
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bytedance/seedance/1.0/pro/image-to-video",
  "prompt": "A skier glides over fresh snow, joyously smiling while kicking up large clouds of snow as he turns. Accelerating gradually down the slope, the camera moves smoothly alongside.",
  "image": "https://static.sandbase.ai/examples/bytedance/seedance/1.0/pro/image-to-video/input_image_0.jpg",
  "duration": 5,
  "aspect_ratio": "21:9"
}'

# 2. If the response is still running, poll the returned id
curl https://api.sandbase.ai/v1/run/run_abc123 \
  -H "Authorization: Bearer $SANDBASE_API_KEY"

Response202 Accepted

{
  "id": "run_abc123",
  "model": "bytedance/seedance/1.0/pro/image-to-video",
  "status": "running",
  "outputs": []
}