Wan Vision Enhancer

POST/v1/run

Wan Vision Enhancer is Alibaba's video-to-video AI model. Transform, enhance, and edit video content using text prompts - from style changes to object manipulation and scene modification.

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 alibaba/wan/vision-enhancer.

Default: alibaba/wan/vision-enhancer

stringpromptrequired

Optional prompt to prepend to the VLM-generated description. Leave empty to use only the auto-generated description from the video.

Optional<string>video

The URL of the video to enhance with Wan Video. Maximum 200MB file size. Videos longer than 500 frames will have only the first 500 frames processed (~8-21 seconds depending on fps).

Optional<integer>seed

Random seed for reproducibility. If not provided, a random seed will be used.

Optional<integer>creativity

Controls how much the model enhances/changes the video. 0 = Minimal change (preserves original), 1 = Subtle enhancement (default), 2 = Medium enhancement, 3 = Strong enhancement, 4 = Maximum enhancement.

Range: 0 to 4

Default: 1

Optional<string>target_resolution

Target output resolution for the enhanced video. 720p (native, fast) or 1080p (upscaled, slower). Processing is always done at 720p, then upscaled if 1080p selected.

Allowed values: 720p, 1080p

Default: 720p

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: video-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": "alibaba/wan/vision-enhancer",
  "prompt": "A cinematic product photo of a matte black smart speaker on a marble table, soft studio lighting",
  "video": "https://static.sandbase.ai/examples/alibaba/wan/vision-enhancer/output_url_0.mp4"
}'

# 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": "alibaba/wan/vision-enhancer",
  "status": "running",
  "outputs": []
}