FLUX.2 Klein 4B
Rank #278
black-forest-labs
black-forest-labs/flux.2-klein-4b
Usage data date 2026-07-26 · updated daily
Usage and specs
Daily rank#278
Daily tokens301M
Daily requests46.1K
Daily change
−10.0%
Context window41K
What is FLUX.2 Klein 4B
FLUX.2 [klein] 4B is the fastest and most cost-effective model in the FLUX.2 family, optimized for high-throughput use cases while maintaining excellent image quality. Pricing is based on the output image. The first generated megapixel is charged $0.014. Each subsequent megapixel is charged $0.001.