Black Forest Labs Ships FLUX 3 Image Klein, 5.6B Open-Weights Image Model
Black Forest Labs released FLUX 3 Image Klein on October 15, 2026, a 5.6-billion-parameter open-weights model for text-to-image generation, image editing, and multi-reference generation. It supports up to 10 reference images in a single generation, a capability that lets users blend multiple subjects, styles, or products into one coherent output. The open-weights release means developers can download, fine-tune, and self-host the model rather than paying per API call. Black Forest Labs continues its strategy of shipping smaller, capable image models under permissive licenses, following earlier FLUX releases that became popular in the open-source community.