Midjourney is a finished creative product with a strong visual identity. Flux is a model family you reach through an API and many apps, with more levers for precision.
Notes on licences
Some FLUX.2 variants are open weights, but licences differ between variants. Check the licence of the exact model before commercial use.
Test it
Write one prompt with a headline and a few objects. Run it in Midjourney, then in FLUX 3 Image with bounding boxes for the same layout. Compare how close each gets to your plan.
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