Introducing FLUX.2 [klein]. Blazing fast. Beautiful.
Generate stunning images in under a second while maintaining exceptional quality.
Great for fast editing, changing styles, and developing ideas from 0 → 1.
Available via API, or run it locally - Klein 4B under Apache 2.0, Klein 9B as open weights.
Try it for free in our demo app (link in the thread).
open weights — A model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.
Why it matters
An Apache 2.0 image model at 4B with sub-second generation makes permissively licensed local image workflows practical, and the NVFP4 build cuts VRAM by more than half.
