Stable Audio 2.5 Audio to Audio

POST/v1/run

Stable Audio 2.5 Audio To Audio by stability-ai - advanced AI model for audio-to-audio. Delivers high-quality results with fast inference, suitable for both creative and production workflows.

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 stability-ai/stable-audio/2.5/audio-to-audio.

Default: stability-ai/stable-audio/2.5/audio-to-audio

stringpromptrequired

The prompt to guide the audio generation

Optional<string>audio

The audio clip to transform

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: audio-to-audio

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": "stability-ai/stable-audio/2.5/audio-to-audio",
  "prompt": "Post rock, guitars, bass, strings, euphoric, up-lifting, moody, flowing, raw, epic",
  "audio": "https://static.sandbase.ai/examples/stability-ai/stable-audio/2.5/audio-to-audio/input_audio_0.wav"
}'

# 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": "stability-ai/stable-audio/2.5/audio-to-audio",
  "status": "running",
  "outputs": []
}