elef4nt/sdmlx-acceleration-patches

SDMLX Acceleration Patches

SDXL/FLUX.1 acceleration patches and exact Qwen Image2.1 adapters for SDMLX / ComfyUI on Apple Silicon.

The SDXL/FLUX.1 packages described below are not fully expanded UNet deltas. They contain SDMLX-mapped low-rank LoRA factors:

• target keys already match the SDMLX MLX UNet
• linear factors use [out, rank] and [rank, in]
• Conv2D down factors use MLX layout [rank, kernel_h, kernel_w, in]
• runtime scale is strength * alpha / rank

Each .sdmlxpatch package contains:

• patch.safetensors
• manifest.json
• optional source_metadata.json

Packages

SDXL

Package	Recommended Steps	CFG	Sampler	Scheduler	Force No CFG
dmd2_sdxl_4step_lora_fp16.sdmlxpatch	4	1.0	lcm	normal	true
dmd2-lighting8step_cfg1.5.sdmlxpatch	8	1.5	lcm	normal	false
sdxl_lightning_4step_lora.sdmlxpatch	4	1.0	euler	sgm_uniform	true
sdxl_lightning_8step_lora.sdmlxpatch	8	1.0	lcm	normal	true
lcm-lora-sdxl.sdmlxpatch	8	1.0	lcm	normal	true
Hyper-SDXL-8steps-CFG-lora.sdmlxpatch	8	5.0	lcm	normal	false
Hyper-SDXL-12steps-CFG-lora.sdmlxpatch	12	7.5	lcm	normal	false

FLUX.1

Package	Target	Recommended Steps	Notes
Hyper-Flux.1-Dev-4-step-Lora.sdmlxpatch	FLUX.1 Dev	4	Optional SDMLX FLUX.1 acceleration patch.

The recommendations are metadata only. SDMLX should keep sampler settings explicit in the UI.

Source Licenses

These packages are transformed LoRA factors. They are provided with source attribution and remain subject to their upstream licenses:

• dmd2_*: source tianweiy/DMD2, Hugging Face metadata lists cc-by-nc-4.0; the model card text names Creative Commons Attribution-NonCommercial-ShareAlike 4.0.
• sdxl_lightning_*: source ByteDance/SDXL-Lightning, license openrail++.
• lcm-lora-sdxl: source latent-consistency/lcm-lora-sdxl, license openrail++.
• Hyper-SDXL-*: source ByteDance/Hyper-SD; SD-related Hyper-SD models are covered by the CreativeML Open RAIL++-M license in the upstream LICENSE.md.
• Hyper-Flux.1-Dev-4-step-Lora: source Lingyuzhou/Hyper_Flux.1_Dev_4_step_Lora. No substantive upstream license grant is documented: Hugging Face metadata says license: 123 and the included LICENSE file is empty (checked 2026-08-04). Do not assume redistribution or commercial-use rights; verify the upstream terms or obtain permission. Use is also subject to applicable FLUX.1 Dev terms.

Do not publish or redistribute packages whose upstream license does not fit your use case. In particular, DMD2 is non-commercial/share-alike. OpenRAIL++ and OpenRAIL++-M packages include use-based restrictions that downstream users must follow.

The SDMLX code license does not relicense these packages. For the repository-level notice, see THIRD_PARTY_NOTICES.md in the SDMLX code repository.

Hugging Face Upload

Use Git LFS for package tensors:

git lfs track "*.safetensors"
git lfs track "*.sdmlxpatch/patch.safetensors"
git add .gitattributes README.md *.sdmlxpatch
git commit -m "Add SDMLX acceleration patches"
git push

Suggested repo type: model.

Qwen Image2.1 — 0.2.0 adapter distribution

Built with Qwen. These adapters use the separate sdmlx-qwen21-speed-patch-v1 format. Their tensor bytes are unchanged from the accepted existing Suite assets; they are not SDXL UNet factors and cannot be used on another model family.

Package	Fixed profile	Other profile
Qwen-Image-2.1-viggle-v0.3-r256.sdmlxpatch	Viggle6step / mixed9step	standard
Qwen-Image-2.1-pruna-v0.1-8step.sdmlxpatch	Pruna8step	standard
Qwen-Image-2.1-qwen-turbo-r128.sdmlxpatch	Extracted Turbo r1288step	standard

Fixed profiles: CFG1, empty negative prompt, strength1. The SDMLX node keeps the correct per-profile curve explicit; the loader never infers sampling from names. An r128 extraction is distinct from the full official Turbo checkpoint.

All three remain subject to the Qwen Research License Agreement, including its non-commercial-use limitation. Each folder includes the complete upstream LICENSE, NOTICE, sources and SHA256. See individual README/source_metadata files. This does not change licenses of the pre-existing SDXL/FLUX.1 packages. The legacy r128 manifest field local_only is retained for compatibility; SDMLX0.2.0 uses a separate pinned distribution registry to retrieve the exact bytes.