FLUX.2 Klein 4B

Name: FLUX.2 Klein 4B
Brand: Black Forest Labs

byBlack Forest Labs

Chat withFLUX.2 Klein 4B

Input PriceFree

Output PriceFree

Context Window40,960 tokens

Modalitiestext, image

Specifications

Technical details and pricing.

ProviderBlack Forest Labs

Context Window40,960 tokens

Release DateJan 14, 2026

ModalitiesText, Image → Image

CapabilitiesVision

Frequently Asked Questions

What is FLUX.2 Klein 4B good for?

Use FLUX.2 Klein 4B for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does FLUX.2 Klein 4B cost?

Pricing is based on usage. Current rates are Free for input and Free for output.

Can I try FLUX.2 Klein 4B for free?

Yes. You can start a chat instantly and test the model before deciding on a plan.

Does FLUX.2 Klein 4B support images or audio?

FLUX.2 Klein 4B can understand images.

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Pricing, context, and capability data are sourced from OpenRouter.