FLUX.2 [klein] 9B
FLUX.2 [klein] 9B is a 9-billion-parameter image generation model from Black Forest Labs released in January 2026.
Black Forest Labs
WaveSpeedCompact image generation with LoRA support
FLUX.2 [klein] 9B is a 9-billion-parameter image generation model developed by Black Forest Labs and released in January 2026. It belongs to the FLUX.2 model family and is positioned as a compact variant, indicated by the "klein" designation. The model accepts text prompts alongside optional source images and LoRA adapters, and supports configurable output dimensions via width and height inputs.
FLUX.2 [klein] 9B is well-suited for workflows that require customizable image generation with fine-tuned stylistic control through LoRA weights. Its support for source image inputs enables image-conditioned generation tasks. Pricing on MindStudio ranges from $0.01 to $0.021 per image, making it accessible for both prototyping and production use cases.
What FLUX.2 [klein] 9B supports
LoRA Support
Accepts custom LoRA adapters at inference time, allowing fine-tuned style or subject control without retraining the base model.
Image-Conditioned Generation
Takes one or more source images as input via an image URL array, enabling image-to-image and reference-guided generation workflows.
Configurable Output Size
Accepts explicit width and height parameters so output image dimensions can be set per request rather than fixed to a default resolution.
Reproducible Generation
Supports a seed input that allows the same prompt and settings to produce identical outputs, useful for debugging and iterative refinement.
Text-to-Image Generation
Generates images from text prompts using a 9-billion-parameter diffusion architecture with a context window of up to 10,000 tokens.
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Get Started FreeCommon questions about FLUX.2 [klein] 9B
How much does it cost to generate an image with FLUX.2 [klein] 9B?
Pricing on MindStudio ranges from $0.01 to $0.021 per image, depending on the specific configuration used.
What is the context window for FLUX.2 [klein] 9B?
The model has a context window of 10,000 tokens, which governs the length of text prompt it can process.
Can I use my own LoRA weights with this model?
Yes. The model accepts LoRA adapters as a dedicated input, allowing you to apply custom fine-tuned weights at inference time.
Does FLUX.2 [klein] 9B support image inputs?
Yes. It accepts an array of image URLs as source images, enabling image-conditioned generation alongside text prompts.
When was FLUX.2 [klein] 9B released?
FLUX.2 [klein] 9B was released in January 2026 by Black Forest Labs.
Documentation & links
Parameters & options
Source images to edit. Reference them as "image1", "image2", etc. in the prompt.
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