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Guides to FLUX 3 Image: what the model does, how bounding boxes work, and how credits are charged.
What is FLUX 3 Image? Black Forest Labs’ model, explained
FLUX 3 Image is Black Forest Labs’ image model: text-to-image, instruction edits, up to ten references, bounding boxes, 1K to 4K output. What it does, and when.
Oct 2, 2026
Flux 3 Image Team
FLUX 3 Image bounding boxes: layout and edit prompts
How FLUX 3 Image bounding boxes work: one [top, left, bottom, right] box per element on a 0–1000 grid, to place elements or edit one spot in a finished image.
Oct 2, 2026
Flux 3 Image Team
How credits work on Flux 3 Image: cost, expiry, refunds
A FLUX 3 Image generation costs 44, 91, or 550 credits at 1K, 2K, or 4K. How credits are granted, when they expire, and what refunds itself.
Oct 2, 2026
Flux 3 Image Team