FLUX 3 Image: bounding-box layouts and pixel-perfect edits for agents
Black Forest Labs shipped FLUX 3 Image with a machine-readable 0–1000 bounding-box layout so agents can compose scenes, edit one box at a time without touching the rest, pull in up to 10 references, and render native 4K (up to 5456×3072). API and Playground are live; commercial weights are available for self-hosting, with open weights still pending.