FLUX.3 Image Klein open-weights release: 6B params, runs on one consumer GPU, native 4K

bfl_ai · x · 2026-10-16

Black Forest Labs releases FLUX.3 Image Klein, promising frontier-model quality at just 5.6B parameters, runnable on a single consumer GPU. Open weights, available across Hugging Face, diffusers, ComfyUI, and Spaces.

It covers text-to-image, editing, multi-reference generation, and JSON bounding-box layout control, with native 4K and pixel-perfect editing. Distilled (16-step) and base versions are provided, plus a 9B klein-pup image-understanding model and official ComfyUI nodes on HF.

Related event: BFL Open-Sources FLUX.3 Image Klein: 5.6B Model Runs 4K Image Generation on a Single Consumer GPU(19 posts)→

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