FLUX 3 Image Klein: open weights, 5.6B parameters

Black Forest Labs has released FLUX 3 Image Klein, a 5.6B-parameter open-weights image model. It covers text-to-image, editing and multi-reference generation with up to 10 reference images. It keeps features of FLUX 3 Image: native 4K output and bounding boxes to place elements or confine edits. It ships as a base model for fine-tuning and a fast step-distilled model, with FP8/INT8/NVFP4 builds, under the FLUX Kommunity License, and is also available in the BFL API.

See original publication↗Black Forest Labs · bfl.ai