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FLUX 3 Image
FLUX 3 Image lets you place every element exactly where you want: choose a canvas ratio, draw a box per object, and unify the whole scene with one prompt.
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What Makes FLUX 3 Image Different
Decide where everything sits: draw boxes, set a canvas ratio, and describe the whole scene in one line.
- Box-by-Box Placement ControlDraw a rectangle around every element that matters, then describe exactly what belongs inside it.
- Any Aspect Ratio, One 0–1000 GridChoose whatever canvas shape you need — both axes stay on a 0 to 1000 grid, so box coordinates keep their meaning.
- A Single Prompt Holds It TogetherOne scene line unifies all the described boxes, just as Le Festival du Soleil was generated.
Building a FLUX 3 Image in Three Steps
From a blank canvas to a finished layout in just three moves.
FLUX 3 Image FAQ
Straight answers about laying out a FLUX 3 Image with bounding boxes.
How do bounding boxes control placement?
Every element you care about gets its own drawn rectangle, and that rectangle marks the area the described subject will occupy in the final picture.
What is the 0–1000 canvas grid for?
No matter which aspect ratio you pick, both axes are scaled from 0 to 1000, so a box keeps a consistent, comparable position across different canvas shapes.
Should I pick an aspect ratio before drawing boxes?
Yes — the ratio comes first. Because every canvas is measured on the same 0 to 1000 grid on both axes, your box coordinates stay readable whatever shape you choose.
What role does the scene prompt play?
It is the single line that holds the individual boxes together as one picture, just like the example 'Le Festival du Soleil, generated from bounding boxes and a scene prompt'.
Can I describe each box on its own?
Absolutely — once a box is drawn, you write what belongs inside it, so every region carries its own content instruction.
Is a subscription or seat licence required?
Not at all. Pricing is pay as you go with no subscriptions and no seat fees, you are only charged for what you generate, and open-weights licensing tiers are available for running the models on your own infrastructure.
Draw Your Own FLUX 3 Image Layout
Sketch a box for each element, tie them with a single scene line, then generate. Pay only for what you make.