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Stable Audio 3 Small Music Base Audio Outpainting

All audio to audio models

Stable Audio 3 Small Music Base audio outpainting is the foundational 459 million parameter checkpoint that extends music tracks via causal continuation guided by text prompts.

Inference$ Commercial useFrom 1 credit per run

About Stable Audio 3 Small Music Base Audio Outpainting

Stable Audio 3 Small Music Base audio outpainting is the foundational 459 million parameter checkpoint that extends music tracks via causal continuation guided by text prompts.

musicextensioncontinuation

Pricing

A run with the default settings costs 1 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

negative_prompttextareadefault: ""

Text description of qualities to avoid in the output.

num_inference_stepsintegerdefault: 50

Number of sampling steps. Base (non-distilled) checkpoints typically need ~50 for good quality.

guidance_scalenumberdefault: 7

Classifier-free guidance scale. Higher values follow the prompt more strictly; ~7.0 is a good starting point for base checkpoints.

seedinteger

Random seed for reproducible outputs. Omit for a random seed.

enable_prompt_expansionbooleandefault: false

If True, the prompt will be expanded using an LLM for more detailed and higher quality results.

enable_safety_checkerbooleandefault: true

Enable NSFW content safety checking.

sync_modebooleandefault: false

If True, the audio is returned inline as a data URI and the result is not saved to the request history.

output_formatselectdefault: "mp3"

Container format for the generated audio output.

Options: mp3, wav, flac, ogg, opus, m4a, aac

bitratetextdefault: "192k"

Audio bitrate for compressed output formats (e.g., mp3, aac, opus). Format e.g. '192k' or '320k'. Ignored for lossless formats (wav, flac).

prompttextarearequired

Text description guiding the extension content.

audio_urlfilerequired

Source audio to extend.

extend_seconds_beforenumberdefault: 0

Seconds of new audio to generate before the source audio.

extend_seconds_afternumberdefault: 0

Seconds of new audio to generate after the source audio.

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