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Abrahamm3r/Z-Image-SDNQ-uint4-svd-r32 · A 4-bit quantized version of Tongyi-MAI/Z-Image using SDNQ (Structured Decomposable Neural Quantization)
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https://huggingface.co/Abrahamm3r/Z-Image-SDNQ-uint4-svd-r32
You need comfyui-sdnq to load SDNQ quantized models in ComfyUI: https://github.com/EnragedAntelope/comfyui-sdnq
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What are the tradeoffs? I can’t believe a 50% to 75% RAM reduction is free. Is this like quantization?
Yeah, it’s a different form of quantization. I think it’s supposed to look a little better than conventional quants, but it still has all the tradeoffs of a quant.
gotcha, so this downloads its own custom quantization models?
Yeah.