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mlx-demucs
lexandstuff/mlx-demucs
mlx-demucs is a machine learning model from lexandstuff. Use it for the machine learning task on the model card, and read the license before you ship it in a product. It is set up for mlx. The card lists the license as mit.
Converted weights for mlx-demucs, an Apple Silicon port of Meta's Demucs audio source separation models using the MLX framework.
Access
Public
Updated May 18, 2026
Repo size
1.2 GB
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At a glance
- Library
- mlx
- License
- mit
- Access
- Public
- Created
- May 18, 2026
- Updated
- May 18, 2026
- SHA
- 73ddf04a
Base models
Model card
From the Hugging Face model README
MLX Demucs Weights
Converted weights for mlx-demucs, an Apple Silicon port of Meta's Demucs audio source separation models using the MLX framework.
All models achieve <0.04% relative error vs the original PyTorch weights.
Models
| Model | Stems | Notes |
|---|---|---|
htdemucs | drums, bass, other, vocals | Hybrid Transformer Demucs |
htdemucs_ft_drums | drums, bass, other, vocals | Fine-tuned for drums |
htdemucs_ft_bass | drums, bass, other, vocals | Fine-tuned for bass |
htdemucs_ft_other | drums, bass, other, vocals | Fine-tuned for other |
htdemucs_ft_vocals | drums, bass, other, vocals | Fine-tuned for vocals |
hdemucs_mmi | drums, bass, other, vocals | Hybrid Demucs, no transformer |
htdemucs_6s | drums, bass, other, vocals, guitar, piano | Experimental 6-stem model |
Usage
Install mlx-demucs — weights are downloaded automatically on first use:
pip install mlx-demucs
mlx-demucs song.wav
mlx-demucs song.wav -m htdemucs_6s
Or use the Python API:
from mlx_demucs.utils.loader import load_model
model = load_model("htdemucs") # 4-stem
model = load_model("htdemucs_ft") # 4-stem ensemble (best quality)
model = load_model("htdemucs_6s") # 6-stem (experimental)
Performance
~38x realtime on Apple Silicon.
License
Weights are derived from facebook/demucs and released under the MIT License. Copyright (c) Meta Platforms, Inc. and affiliates.
- Library
- mlx
- License
- mit
- Created
- May 18, 2026
- Updated
- May 18, 2026