FLUX 3 Image Klein brings 4K editing to 8GB GPUs
Black Forest Labs’ 5.6B open-weights model brings native 4K generation, pixel-perfect editing, and multi-reference creation to smaller local setups. Its INT8 build runs through ComfyUI or Diffusers on NVIDIA GeForce RTX GPUs with as little as 8GB of VRAM, while the base checkpoint supports LoRA fine-tuning. With the distilled model, it generates a 1MP image in about 4 seconds on an RTX 5090 and under 9 seconds on an RTX 4070.