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.
Black Forest Labs: FLUX.2 Klein 4B – Effective Pricing | OpenRouter
Effective Pricing for FLUX.2 Klein 4B
Actual cost per million tokens across providers over the past hour