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FLUX 3 Klein MXFP8 by FP8Enjoyer

Model Oct 15, 2026

A community MXFP8 conversion of the distilled FLUX 3 Image Klein transformer for ComfyUI, with laptop timings, paired samples and a compatibility patch.

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Author-generated FLUX 3 Klein sample pairs, with BF16 on the left and MXFP8 on the right: a sunflower portrait, a dog and a Tokyo street.
FP8Enjoyer's generated comparison sheet, resized without cropping. BF16 is on the left and MXFP8 on the right. These are author samples, not AITrending reproductions or proof of equal quality. Source: FP8Enjoyer; generated with Black Forest Labs FLUX 3 Image Klein
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FLUX 3 Klein MXFP8 by FP8Enjoyer timeline

FP8Enjoyer’s October 15, 2026 upload converts the existing distilled FLUX 3 Image Klein diffusion transformer to MXFP8 for ComfyUI. The author lists a checkpoint of approximately 5.72 GB and provides a patch for a non-contiguous activation incompatibility with ComfyKitchen. The matching text encoder and VAE must be obtained separately.

The author reports a single-laptop performance comparison using an RTX 5070 Ti Laptop GPU, ComfyUI 0.41.0 and ComfyKitchen 0.2.37. Its timing files and paired generated samples are author evidence, not independently reproduced benchmarks or proof of equal image quality. This is a community conversion, not an official Black Forest Labs checkpoint. The FLUX Kommunity License and its commercial-use conditions remain in force.