BFL releases FLUX 3 Image Klein: 5.6B open weights, native 4K on a single consumer GPU
bfl_ai · x · 2026-10-15
Black Forest Labs has released FLUX 3 Image Klein, open weights approaching frontier-model quality: 5.6B parameters, runs on a single consumer GPU, with native 4K, bounding boxes, and pixel-perfect editing.
What's launched:
- Base open weights: full checkpoint for fine-tuning, further training, and research
- Distilled open weights: low-latency version for fast generation and self-hosting
- Quantized versions: FP8, NVFP4, and INT8 — small enough for GPUs and laptops with 8 GB VRAM
- BFL API: the distilled model with native 4K, bounding boxes, and pixel-perfect editing
- Ecosystem support: day-one support for AI Toolkit, ComfyUI, Diffusers, SGLang Diffusion, vLLM-Omni, plus NVIDIA fine-tuning recipes and deployment optimizations
Related event: Black Forest Labs Open-Sources FLUX.3 Klein for Single-GPU 4K Generation(21 posts)→
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