Black Forest Labs: FLUX.2 Klein 4B

black-forest-labs/flux.2-klein-4b

Released Jan 14, 202640,960 context$0.014 per megapixel

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.

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Black Forest Labs: FLUX.2 Klein 4B

black-forest-labs/flux.2-klein-4b

Released Jan 14, 202640,960 context$0.014 per megapixel

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.

Recent activity on FLUX.2 Klein 4B

Total usage per day on OpenRouter

Image Outputs

10K

Image Inputs

594

Image inputs count visual attachments processed in prompts. Image outputs count generated images. Some requests may process or generate multiple images.

Recent activity on FLUX.2 Klein 4B

Total usage per day on OpenRouter

Image Outputs

10K

Image Inputs

594

Image inputs count visual attachments processed in prompts. Image outputs count generated images. Some requests may process or generate multiple images.