StepFunStepAudio 3
StepAudio 3 Music
StepAudio 3 Music supports full songs, instrumental music and accompaniment for an isolated vocal. Its inputs can include lyrics, descriptions, singing or reference audio.
Preview
Give the song a structure
The guide recommends section labels such as verse and chorus. Its architecture models melody, rhythm, harmony and song structure, then renders the final audio.StepFun stepaudio-3-music guide
Choose the right starting material
Practical guidance. For an existing vocal performance, start with accompaniment generation. For a new song, use structured lyrics and a clear musical brief. Change one major variable per revision so you can identify what improved.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Status | Preview |
| Access | API, Provider product |
| Model identifiers | stepaudio-3-music-previewstepaudio-3-musicStepMusic |
| Current access | The guide uses a preview ID. The paid stepaudio-3-music name is scheduled for 9 November 2026.StepFun billing catalog and 9 November 2026 audio change |
| Execution | The Music API uses an asynchronous HTTP task.StepFun stepaudio-3-music guide |
| Feature boundary | ABC notation input is described as forthcoming, not a current capability.StepFun stepaudio-3-music guide |
Related models
- StepAudio 3 Gen
StepFun · StepAudio 3
StepAudio 3 Gen creates audio from role descriptions, scripts and natural-language instructions.
Launch date not confirmedPreviewAPI · Provider product