Acentaur MLX model packages
Official public release-distribution repository for the persistent MLX
packages used by ACENTAUR 1.0 on Apple Silicon. ACENTAUR Setup downloads
only the selected revision-pinned package paths. These files are derived from
the official ACE-Step 1.5 weights and retain the upstream MIT license.
These packages are not intended for direct use with LM Studio, Transformers,
Diffusers, generic MLX model loaders or Hugging Face Inference Providers. Get
ACENTAUR and product information at
https://www.einaux.com.
The packages use Acentaur's versioned internal checkpoint contract. Each
package contains a manifest.json that pins its upstream model revision and
source file metadata. Download and installation are managed by ACENTAUR Setup;
cloning the complete repository is unnecessary.
Contents
| Package | Acentaur role | Stored dtype | Payload bytes |
|---|
acestep-v15-turbo | ACE 2B Turbo DiT and conditioning | float16 + source | 4,787,821,153 |
acestep-v15-sft | ACE 2B SFT DiT and conditioning | float32 + source | 7,938,739,105 |
acestep-v15-base | ACE 2B Base DiT and conditioning | float32 + source | 7,938,739,083 |
acestep-v15-xl-turbo | ACE XL Turbo DiT and conditioning | float16 + source | 11,611,541,334 |
acestep-v15-xl-sft | ACE XL SFT DiT and conditioning | float32 + source | 19,949,336,105 |
acestep-v15-xl-base | ACE XL Base DiT and conditioning | float32 + source | 19,949,336,105 |
vae | Shared native MLX VAE | float32 | 674,673,591 |
Total Safetensors payload: 72,850,186,476 bytes.
The planner and embedding assets remain immutable upstream packages rather
than converted DiT payloads:
| Shared asset | Role | Upstream revision | Repository bytes |
|---|
Qwen3-Embedding-0.6B | Shared text embedding | ACE-Step/Ace-Step1.5@19671f406d603126926c1b7e2adc169acbcade22 | 1,207,471,006 |
acestep-5Hz-lm-0.6B | Low-memory ACE planner | ACE-Step/acestep-5Hz-lm-0.6B@148d8ea0225bdab342ee1ae3a354275ccd60ca80 | 1,364,198,888 |
acestep-5Hz-lm-1.7B | Default ACE planner | ACE-Step/Ace-Step1.5@19671f406d603126926c1b7e2adc169acbcade22 | 3,755,412,617 |
acestep-5Hz-lm-4B | Parked Large ACE planner; not downloaded by release Setup pending an upstream MLX fix | ACE-Step/acestep-5Hz-lm-4B@0a3ec94b557aea7d508da38b31cfe7341f6ff737 | 8,426,085,346 |
Provenance
The source repositories and exact revisions are recorded in
source-revisions.json and repeated inside each package manifest. Original
PyTorch DiT shards are not included. Public tokenizer, embedding and planner
assets that Acentaur consumes directly are intentionally outside this
repository. The pinned 4B provenance remains recorded, but release Setup does
not download it while its Apple-Silicon MLX path is parked.
The newly added regular SFT package was built from the immutable upstream
revision c410d249e71ea9385a7b586865e65b1473e1098d. Its converted payload is:
| File | Bytes | SHA-256 |
|---|
acestep-v15-sft/model.safetensors | 6,301,886,377 | 3a8bce909ed0becccbfb54199f4cdbf3f7131fcdc5f232db48e929f47bdd78fd |
acestep-v15-sft/conditioning.safetensors | 1,636,852,728 | 0d94bfca037e3039f34b5b8652aa19b3658627e39a208bf79d27aae92d04e578 |
Validation
Before upload, all 13 Safetensors files were opened successfully and checked
against their manifests for exact file size and tensor count. The five
previously shipped DiT packages (turbo, base, xl-turbo, xl-sft, and
xl-base) have passed Acentaur's runtime/parity matrix. The regular sft
package passed focused ACENTAUR M5 runtime smokes with No LM and the 0.6B
planner on 2026-08-13. Those smokes establish runtime operation, not final
listening-quality parity.
Public, anonymous revision-pinned download is part of the ACENTAUR 1.0 Setup
and release contract. Changing the repository to private would be a breaking
distribution change and requires a new authenticated delivery contract.
