FLUX.1 Fill [dev]

The pitch behind FLUX.1 Fill [dev] is simple: going from idea to a reviewable screen, faster than doing it by hand.Open-weight inpainting model for editing and extending images. Guidance-distilled from FLUX.1 Fill [pro].The parts you will use dailyTurns a prompt into a usable layoutProduces variations of a componentExports production-ready filesKeeps spacing and type consistentThe people who get value firstFLUX.1 Fill [dev] is usually picked up by product designers, design leads and solo founders. It is a poor fit if you need the whole workflow automated end to end, because it covers one step rather than the pipeline.Where it earns its placeMocking up a landing page in minutesExploring three layout directionsHanding a clean file to developersWhat it replacesIt complements your design tool rather than replacing it: exploration here, polish there.Getting startedUpload a real file rather than a demo sample; that is where quality differences show.Mocking up a landing page in minutes, since that is the workflow it was built for.Start on the smallest plan - the gap between tiers is usually volume, not capability.How it is pricedModel: Freemium · Free tier: Usually yes · Paid plans: published on the official site.In contextYou will end up comparing FLUX.1 Fill [dev] with other AI Models tools. The usual difference is speed on first drafts versus control over the final output.Setup and learning curveThe first hour goes on calibrating output style; after that it behaves like a normal editor tab. Whether components stay editable, and export formats are the two things to confirm before committing a budget.Where it stopsIt is a production aid, not a replacement for review.Anything client-facing still needs a read-through.When to skip itIf your task changes shape every week, a narrower tool like FLUX.1 Fill [dev] will feel limiting.The free tier is the honest test: run one real task before paying.Last verified: 2026-11-13. Pricing model: Freemium. Best for: product designers, design leads.