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Flux vs Stable Diffusion

FLUX or Stable Diffusion? A side-by-side look at openness, control, setup and cost for creators and developers.

Published October 15, 2026Updated October 15, 2026
FluxStable Diffusion
Who makes itBlack Forest LabsStability AI (first released the family)
Current generationFLUX 3 Image (October 1, 2026); FLUX.2 family since November 25, 2025A family of open image models plus many community versions
OpennessFLUX 3 through the API; some FLUX.2 variants have open weights, each with its own licenceMany models available openly, with a large ecosystem of add-ons
ControlBounding boxes in the prompt, up to ten references, pixel-exact local editsNegative prompts, steps and guidance settings, extensions and community-trained styles
How you use itBFL API priced per image (from $0.041 at 768 square for FLUX 3 Image) and many appsRun locally on your own hardware, or use apps and services built on it
EffortLess setup through the API or an appMore setup and tuning, more freedom
Best forExact layouts, many references and developer pipelinesMaximum customisation and a fully local workflow
our take

Choose FLUX 3 Image for precise placement and an API; choose Stable Diffusion when you want to run and customise models yourself. Check the licence of any variant before commercial use.

Both are popular with developers and tinkerers, and both have open-weight options. They differ in how much of the work you do yourself.

How to test

Write one detailed prompt and run it in each. Then try the control each one is known for: a bounding-box layout in FLUX 3 Image, and a negative prompt plus a community style in Stable Diffusion. Compare how much effort each result took.

Read the reviews of Flux and Stable Diffusion, see Midjourney vs Flux, the AI model tracker for versions and sources, or browse all comparisons.

Flux reviewStable Diffusion reviewRead the in-depth four-way comparison →
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