StepFunWeights not listed·Not published context·— params
StepAudio 3 Music Previewstepfun/stepaudio-3-music-preview
StepAudio 3 Music Preview generates songs or instrumental music from descriptions, lyrics, vocals or reference audio. It supports accompaniment and arrangement workflows through an asynchronous API.
Availability and billing notes
Reviewed September 21, 2026 · check the linked provider documentation for later changes.
Model ID stepaudio-3-music-preview; POST /v1/audio/music. ABC notation is documented as coming soon, not an available feature.
The official pricing page lists a limited-time free preview as of September 21, 2026. StepFun says the preview ID will be retired when a paid version launches; this is not a permanent free-tier promise.
Capabilities
- music_generation
Technical specs
- Context
- Not published
- Max output
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- Parameters
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- Release
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- Training cutoff
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- License
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Similar models
Compare with
- StepAudio 3 Music Preview vs StepAudio 3 ASR MaxComparison planned — not yet published
- StepAudio 3 Music Preview vs StepAudio 3 Chat PreviewComparison planned — not yet published
- StepAudio 3 Music Preview vs StepAudio 3 Gen PreviewComparison planned — not yet published
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