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FLUX.2 Klein 9B is Black Forest Labs' high-fidelity distilled AI image model. Nine billion parameters. Four inference steps. Sub-second generation. Write a prompt and get a finished image in under a second. Attach up to five reference photos and describe an edit. Swap a backdrop, change an outfit, restyle a scene, or extend a composition. Klein 9B renders crisp text up to four megapixels — headlines, button labels, signage, magazine spreads. Choose any aspect ratio from square to ultrawide cinematic. Available in Visual Sandbox alongside other advanced AI image models, so you can generate, edit, and iterate in a single place. A practical choice for hero shots, ad creative, character consistency, social content, and concept exploration where quality matters.
| Tier | Price |
|---|---|
| 1 MP | $0.02 / image |
| 2 MP | $0.04 / image |
| 4 MP | $0.08 / image |
| Reference image (per MP) | +$0.01 / image |
Billed per megapixel. 0.25 MP and 0.5 MP options are also available in the composer at proportionally lower cost. Reference images add the per-MP rate above for each input.