Tencent SongGeneration (LeVo 2)
Tencent AI Lab class B live
Open-weight 4B full-song generator (SongGeneration-v2 / LeVo 2, ~Mar 2026); vocals+accompaniment, a cappella, or dual-track separated output.
Layer 1 — factual axes
| API & price | public via third-party WaveSpeed ~$0.05/run (no confirmed official API) | secondary | source ↗ 2026-07-04 |
|---|---|---|---|
| Max length | up to 4 min 30 sec | secondary | source ↗ 2026-07-04 |
| Vocals | vocals + instrumental (also a cappella, dual-track) | secondary | source ↗ 2026-07-04 |
| Weights | open · licence conflict (GitHub custom terms vs HF Apache-2.0) | unverified | — |
| Free tier | open self-host | secondary | source ↗ 2026-07-04 |
| Commercial rights | Unverified — governed by unresolved weight licence; review Tencent terms first | unverified | — |
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 4B full-song generator (SongGeneration-v2 / LeVo 2, ~Mar 2026); vocals+accompaniment, a cappella, or dual-track separated output.