Vidu Q2 Video Extension Pro

POST/v1/run

Vidu Q2 Video Extension is Shengshu'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 vidu/q2/video-extension/pro.

Default: vidu/q2/video-extension/pro

stringpromptrequired

text prompt to guide the video extension

Optional<string>video

URL of the video to extend

Optional<string>resolution

Output video resolution

Allowed values: 720p, 1080p

Default: 720p

Optional<integer>duration

Duration of the extension in seconds

Allowed values: 2, 3, 4, 5, 6, 7

Default: 4

Optional<integer>seed

Random seed for reproducibility. If None, a random seed is chosen.

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": "vidu/q2/video-extension/pro",
  "prompt": "A cinematic product photo of a matte black smart speaker on a marble table, soft studio lighting",
  "video": "https://static.sandbase.ai/examples/shengshu/vidu/q2/video-extension/pro/output_url_0.mp4",
  "duration": 4
}'

# 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": "vidu/q2/video-extension/pro",
  "status": "running",
  "outputs": []
}