Stable Audio
Stability AI class A live
Open-weight + API music/SFX generator trained on fully licensed data; you own your outputs, tracks up to ~6 minutes.
Layer 1 — factual axes
| API & price | public · $0.20/generation | secondary | source ↗ 2026-07-04 |
|---|---|---|---|
| Max length | ~6 min 20 sec (Medium/Large) | official | source ↗ 2026-07-04 |
| Vocals | instrumental only | secondary | source ↗ 2026-07-04 |
| Weights | open · Stability Community License (Small/Medium open; Large API-only) | official | source ↗ 2026-07-04 |
| Free tier | open self-host | official | source ↗ 2026-07-04 |
| Commercial rights | You own outputs; free under Community License; orgs >$1M revenue need Enterprise License | official | source ↗ 2026-07-04 |
Layer 2 — output quality
No independent measure yet. We publish a quality figure only when a named external benchmark ranks this model — we don’t invent one.
Open-weight + API music/SFX generator trained on fully licensed data; you own your outputs, tracks up to ~6 minutes.