FLUX 1.1 Pro

FLUX 1.1 Pro is the flagship text-to-image model from Black Forest Labs. It represents a major upgrade over FLUX 1.0 Pro, combining about 12 billion parameters, a hybrid architecture of multimodal and parallel diffusion transformer blocks, and training by flow matching to enhance both speed and image quality. FLUX 1.1 Pro achieves state-of-the-art results in benchmarks such as the Artificial Analysis image arena, offering much faster generation while retaining strong prompt fidelity, visual detail, and output diversity.