FLUX 3 Image: a guide to layout boxes and targeted edits
Use FLUX 3 Image layout boxes and reference images for composition or targeted edits. A documentation-based guide to coordinates, retrieval, prices and limits.
The big change
What changed: BFL's October 1 release documents composition and editing through v1/flux-3-image. A scene description and JSON element table share one prompt, with boxes specifying positions or edits. BFL release notes
Why it matters: Creators can translate a planned rectangle into coordinates, then specify which reference elements to keep, move or replace. The practical choice is how much to define: a whole composition, a simple instruction or an explicit editing table. BFL box tutorial
What to watch: Choose a resolution and budget before submitting: the listed 1k and 4k prices are $0.048 and $0.607 per image. Inspect the full result because boxes can allow spillover and an edit can affect nearby lighting, shadows or reflections. BFL pricing, editing limits



