Black Forest Labs Releases New FLUX.2 Image Model

German AI research company Black Forest Labs has released FLUX.2 klein, a new 9-billion-parameter text-to-image model. The release marks the debut of the FLUX architecture, which is designed for high-speed, high-quality image generation and editing. The weights and code are available now on Hugging Face.

A Different Approach to Diffusion

Unlike many popular image models such as Stable Diffusion that use a VAE to work in a compressed latent space, FLUX.2 operates directly on pixels. The architecture is based on Flow Matching, a newer technique for generative modeling. It also processes text and image embeddings in parallel, a design choice intended to improve efficiency and the model's understanding of prompts.

The result is a model capable of generating 1024x1024 images in under a second on consumer-grade GPUs. Beyond standard text-to-image prompting, FLUX.2 is also equipped for a variety of image editing tasks, including:

• Inpainting and outpainting
• Style transfer
• Image-guided generation

This 9B model, named 'klein' (German for 'small'), is the first of two planned releases; a larger 50B 'groß' model is also in development. The model is released under a custom FLUX.2 Community License, which allows for creative and small-scale commercial use but requires a separate commercial license for entities with over $1 million in annual revenue.