BFL launches FLUX.3 Image Klein: open-weights 5.6B model with native 4K on one consumer GPU
bfl_ai · x · 2026-10-15
Black Forest Labs released FLUX.3 Image Klein, a 5.6B-parameter open-weights image model claiming frontier-level quality on a single consumer GPU, with native 4K output, bounding-box control and pixel-perfect editing. The launch includes full base weights for fine-tuning, a distilled low-latency version for self-hosting, FP8/NVFP4/INT8 quantized builds that fit in 8GB VRAM, a BFL API, and day-one support across ComfyUI, Diffusers, SGLang Diffusion, vLLM-Omni and NVIDIA fine-tuning recipes.
Related event: Black Forest Labs Open-Sources FLUX.3 Klein for Single-GPU 4K Generation(21 posts)→
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