V1.1 Video to Video Sound Effects

POST/v1/run

1.1 Video To Video Sound Effects by Sonilo - AI-powered video editing and transformation. Apply style transfer, motion control, lip-sync, and visual effects to existing videos with natural language instructions.

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 sonilo/1.1/video-to-video-sound-effects.

Default: sonilo/1.1/video-to-video-sound-effects

stringpromptrequired

Optional. Describe the kind of sound you want; it steers the generated audio for every scene. Leave empty to caption the video automatically.

Optional<string>video

The video to add sound to (public URL, or upload a file). The generated audio matches the video's length.

Optional<string>audio_format

Format of the returned audio file: aac (default), mp3, wav, or flac. (The video with sound is always AAC.)

Allowed values: wav, mp3, aac, flac

Default: aac

Optional<array<object>>segments

Optional. Split the video into time ranges, each with its own sound description. Leave empty to split into scenes automatically.

Response Schema

The submit endpoint returns a run response. If its status is pending or running, poll GET /v1/run/{id} with the returned opaque ID until it reaches a terminal state.

stringidrequired

Opaque SandBase run identifier. Use it exactly as returned; no prefix is guaranteed.

stringstatusrequired

Current public run status.

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

Optional<string>model

Public SandBase model name used for this run.

Optional<array<object>>outputs

Present only for completed runs. Each object is capability-specific; inspect the selected model schema for its fields.

Optional<object>error

Present only for failed or timeout runs. Contains a public error type and sanitized message.

Optional<string>error.type

Stable public error category.

Optional<string>error.message

Sanitized error message safe to show to clients.

Optional<object>usage

Usage details when available.

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": "sonilo/1.1/video-to-video-sound-effects",
  "prompt": "A cinematic product photo of a matte black smart speaker on a marble table, soft studio lighting",
  "video": "https://storage.googleapis.com/falserverless/model_tests/video_models/mmaudio_input.mp4"
}'

# 2. If the response is still running, poll the returned id
curl https://api.sandbase.ai/v1/run/f3d2e8a1-7c4b-4a12-9d2e-123456789abc \
  -H "Authorization: Bearer $SANDBASE_API_KEY"

Response202 Accepted

{
  "id": "f3d2e8a1-7c4b-4a12-9d2e-123456789abc",
  "model": "sonilo/1.1/video-to-video-sound-effects",
  "status": "running"
}