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FLUX 3 Image Klein is the compact model of Black Forest Labs' FLUX 3 family. Small enough to be quick. Sharp up to native 4K. Write a prompt and generate an image. Attach up to ten reference photos and describe an edit. Put a product, a person, and a place into one scene. Swap a backdrop. Restyle a photo. Pick 1K for quick drafts or 4K for print, in any of 15 aspect ratios. Available in Visual Sandbox alongside other advanced AI image models, so you can generate, edit, and iterate in a single place. Incredibly fast. A powerful choice for product shots, ad creative, character scenes, social content, and concept exploration.
| Tier | Price |
|---|---|
| 1K | $0.02 / image |
| 1.5K | $0.02 / image |
| 2K | $0.02 / image |
| 4K | $0.05 / image |
Billed per output megapixel, so the price rises with resolution. Reference images are free. Visual Sandbox shows the exact price before you generate.