v0.1.6
🎉 ACE-Step 1.5 XL (4B DiT) Release
We introduce the XL series — a larger 4B-parameter DiT decoder for higher audio quality. XL achieves best scores across all 11 benchmark metrics, surpassing all commercial and open-source models.
New Models
| Model | Steps | CFG | HuggingFace |
|---|---|---|---|
acestep-v15-xl-base |
50 | ✅ | Link |
acestep-v15-xl-sft |
50 | ✅ | Link |
acestep-v15-xl-turbo |
8 | ❌ | Link |
- Weights: ~9GB (bf16) vs ~4.7GB for 2B
- Min VRAM: 12GB with offload, 20GB+ recommended
- LM compatibility: All LM models (0.6B/1.7B/4B) fully compatible
Features
- Model download registry and VRAM management for XL (#989, #990)
- XL model code directories: xl_base, xl_sft, xl_turbo (#1001)
- MLX Apple Silicon support for XL (#1002)
- VRAM preflight check uses actual model size (#1003)
- UI VRAM warning for XL models (#1004)
- Documentation in 4 languages: en/zh/ja/ko (#1005)
- Training & LoRA support for XL (#1006)
- Deduplicated model config files (#1000)
- Default Gradio model changed to xl-turbo (#1009)
- Persist user preferences across sessions via localStorage (#1013)
Bug Fixes
- Fix config_path lookup in VRAM guards and API /models endpoint (#1003)
- Fix MLX condition_embedder dimension mismatch for XL (#1002)
- Fix API auto-calculation for metadata params (duration/bpm) (#1023)
- Fix user preference restore regressions (#1025, #1026)
- Fix GenerationParams crash when None passed for numeric fields (#1027)
- Fix AAC/M4A source audio "invalid source audio" error in remix/extract (#1028)
- Fix empty values in restore_preferences causing Gradio crash on load (#1030)
- Fix cover/repaint using caller-supplied duration instead of src_audio duration (#1031, #1033)
- Fix cover/repaint/extract missing error when source audio not provided (#1035)
- Fix cover/repaint tasks with audio codes but no src_audio (#1036)
Full Changelog: v0.1.5...v0.1.6