FLUX.3 Image Klein ships open in Diffusers: layout control, 2s per image on H100

ariG23498 · x · 2026-10-15

Black Forest Labs released FLUX.3 Image Klein, an open image model supported in Diffusers from day one. One model handles text-to-image, multi-reference image-to-image, and new bounding-box layout control. A distilled checkpoint makes a 1024×1024 image in 2 seconds on an H100 (16 steps, no CFG), with a 50-step base variant, NVFP4/FP8 quantized weights, LoRA training scripts for both T2I and editing, a Qwen3-VL text encoder, and a Modular Diffusers pipeline.

Related event: Black Forest Labs Open-Sources FLUX.3 Klein: 5.6B Model Runs 4K Image Generation on a Single Consumer GPU(16 posts)→

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