Access 4 black-forest-labs models on OpenRouter including FLUX.2 Klein 4B, FLUX.2 Max, and FLUX.2 Flex. Compare pricing, context windows, and capabilities.
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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.