PiMP Audio ACE Captioner 4-bit v1
This is a native Swift/MLX model pack derived from
ACE-Step/acestep-captioner.
It is intended for local, whole-track dataset annotation in PiMP Audio Studio.
This is a community conversion and is not an official ACE-Step release.
Pack details
- Task: music captioning and annotation
- Upstream revision:
7109e9af1c6cfe3371730310b3a5cb773145b11e
- Quantization: 4-bit affine, group size 64
- Included model components: thinker and audio tower
- Excluded model components: talker, token-to-wave, and vision
- On-disk size: approximately 4.67 GB
- Runtime: MLX through native Swift code in PiMP Audio Studio
native-model-pack.json is the machine-readable pack manifest. PiMP Audio
Studio validates the required file set, byte counts, and SHA-256 checksums
before installing the pack.
Availability and use
This repository is packaged for PiMP Audio Studio's Native ACE annotation
backend. It is not a standard Transformers checkpoint and is not intended to
generate audio.
The model pack is hosted publicly so PiMP Audio Studio can download it without
requiring a Hugging Face account. PiMP Audio Studio itself is currently
private and has not been released for general download. This repository is
therefore not a standalone application or a complete public inference package;
the compatible native Swift/MLX runtime currently ships only inside PiMP Audio
Studio.
In a compatible PiMP Audio Studio build, open Settings > Models, find
Dataset Annotation (Advanced), and click Download beside
ACE Captioner 4-bit. The app downloads the pinned revision, verifies every
hosted file against the pack manifest, installs it transactionally, and makes
it active automatically.
The native annotation backend is unsupported on 16 GB systems, provisional on
24 GB systems, and recommended on systems with at least 32 GB of unified
memory.
License and attribution
The upstream model is released under the MIT license. See the
ACE-Step captioner model card
and the
ACE-Step project for the
original model, documentation, and attribution.
