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README.md
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---
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license: other
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license_name: kolors-model-license
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license_link: LICENSE
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library_name: mlx
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pipeline_tag: text-to-image
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base_model: Kwai-Kolors/Kolors-diffusers
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tags:
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- mlx
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- kolors
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- text-to-image
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- quantized
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---
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# Kolors — MLX quantization tiers (SceneWorks)
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Pre-quantized MLX turnkey tiers of [Kwai-Kolors/Kolors-diffusers](https://huggingface.co/Kwai-Kolors/Kolors-diffusers)
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for the SceneWorks native (`mlx-gen`) runtime. Each tier subdir is a self-contained snapshot — SDXL-style
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U-Net + **ChatGLM3-6B** text encoder + SDXL VAE + baked fast tokenizer — that loads **packed**, with no
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dense transient and no install-time conversion peak.
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| Tier | Subdir | Size | Notes |
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|------|--------|------|-------|
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| Q4 (default) | `q4/` | ~6.0 GiB | U-Net + ChatGLM3 packed 4-bit; dense VAE |
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| Q8 | `q8/` | ~9.7 GiB | U-Net + ChatGLM3 packed 8-bit; dense VAE |
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| bf16 | `bf16/`| ~17 GiB | dense 16-bit weights |
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**Quantization:** group-wise affine, group size 64, weight-only, byte-identical to the runtime's
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load-time seam. The VAE is never quantized (it runs f32). The fast `tokenizer.json` is derived from the
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ChatGLM3 slow tokenizer ([`SceneWorks/kolors-chatglm3-tokenizer`](https://huggingface.co/SceneWorks/kolors-chatglm3-tokenizer))
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and baked into each tier.
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## License & attribution
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Model weights are Kolors, © Kwai-Kolors, under the **Kolors Model License Agreement** — see
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[`LICENSE`](LICENSE) (verbatim). Commercial use requires a separate license from the original licensor.
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Re-hosted by SceneWorks for runtime provisioning; the license and its use-restrictions travel with the
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weights and bind downstream recipients (per §3(a) of the license).
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