All tasks / Models
ACE-Step 1.5
Open-weights music foundation model from ACE Studio and StepFun for songs with vocals and lyrics, built to run on consumer GPUs.
- ACE Studio and StepFun
- Open weights
- Released Jan 2026
Where it ranks
- –Music generationModels · Local · no result on this task’s benchmarks yet
Facts
- Vendor
- ACE Studio and StepFun
- Family
- ACE-Step
- Released
- Jan 2026
- Weights
- Open: download and run it yourself
- License
- MIT
- Parameters
- 4B
- GPU memory to run locally
- ~8 GB (README: 2B turbo DiT runs in <=6 GB (DiT only, INT8 + CPU offload) or 6-8 GB with the 0.6B LM; XL (4B DiT, added 2026-04-02) needs >=12 GB with offload + quantization or >=20 GB without.)
- Access
- Free (open weights)
- Last verified
- 18 Oct 2026
Price from huggingface.co, 18 Oct 2026.
Benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| Music Arena Leaderboard: Instrumental | 894 | ACE-Step 1.5 Turbo (1.7B)Votes through 2026-07-31; 95% CI +/-55; 176 votes | 31 Jul 2026 | music-arena.org |
| Music Arena Leaderboard: Vocal | 939 | ACE-Step 1.5 Turbo (1.7B)Votes through 2026-07-31; 95% CI +/-29; 668 votes | 31 Jul 2026 | music-arena.org |
Where you can use it
- –ACE MusicApps · Cloud
- –ACE-Step UIApps · Local
- Baudio.cppRuntimes & APIs · Local
- BComfyUIWorkflow platforms · Local
- STuneeApps · Cloud
- BWanGP (Wan2GP)Apps · Local
- –yovoiceApps · Local
Earlier versions
- ACE-Step v1 · —