FLUX.2 Klein 9B
FLUX.2 Klein 9B is Black Forest Labs' open-weight member of the FLUX.2 family, available in FluxoKit's browser studio at 2 credits per image, the cheapest FLUX in the catalog. It delivers a surprising share of the Pro tier's quality for exploration and volume work on plans starting at $14 per month.
Examples
5 generationsReal generations with FLUX.2 Klein 9B
Overview
FLUX.2 Klein 9B is the open-weight distillation of Black Forest Labs' FLUX.2 line, and its pitch is arithmetic: a meaningful share of FLUX 2 Pro's quality at 2 credits instead of the flagship rate. FluxoKit runs it in the browser with credit pricing, no Hugging Face setup, weights, or GPU required.
The examples on this page are real, unretouched FLUX.2 Klein 9B generations with exact prompts printed beneath them. Klein queries mostly resolve to model cards and benchmarks; this page is the decision-grade comparison in pictures.
What you can build with FLUX.2 Klein 9B
Klein covers exploration at scale: mood frames, direction drafts, and volume variants that would be uneconomical on the Pro tier. The FLUX family's composition instincts survive the distillation, so drafts translate cleanly when a winner moves up to FLUX 2 Pro for finishing.
At 2 credits per image, a fifty-image exploration costs 100 credits. That changes how wide a team can afford to search before committing.
Where FLUX.2 Klein 9B earns its credits
Design teams use Klein as the wide-net layer of the FLUX workflow: search broad here, finish narrow on Pro. Teams that self-hosted the open weights use the FluxoKit version to skip GPU provisioning while keeping the same model behavior, with per-image costs visible in the generation history.
FLUX.2 Klein 9B vs FLUX 2 Pro, Grok Imagine, and GPT Image 1.5
The flagship finishes with texture and fidelity Klein cannot match. The workflow is draft-on-Klein, finish-on-Pro; prompts transfer within the family.
Grok at 3 credits goes bolder and more graphic. Klein stays closer to FLUX's composed, photographic instincts at an even lower rate.
OpenAI's volume tier at 4 credits follows instructions more literally. Klein wins on price and on FLUX-family aesthetics.
Capabilities
Batch processing
Yes
Output type
Image
Limits
Max batch size
4
Credits per generation
2
Parameters and inputs
Each field below shows what the model accepts and the limits to apply.
Parameters
Image Size
image_size
- Required
- No
- Default
- landscape_4_3
Options
- Square Hd (square_hd)
- Square (square)
- Portrait 4 3 (portrait_4_3)
- Portrait 16 9 (portrait_16_9)
- Landscape 4 3 (landscape_4_3)
- Landscape 16 9 (landscape_16_9)
Num Images
num_images
Frequently asked questions
›How much does FLUX.2 Klein 9B cost per image?
FLUX.2 Klein 9B costs 2 credits per generation on FluxoKit, the lowest rate in the FLUX family. Plans start at $14 per month and every generation shows its exact cost in your history.
›Is FLUX.2 Klein 9B good enough compared to FLUX 2 Pro?
For exploration, drafts, and volume variants, yes: the open-weight 9B keeps the family's composition quality at a fraction of the cost. Final art still belongs to FLUX 2 Pro. Run the same prompt on both pages and judge the gap directly.
›Do I need to download weights or a GPU to use FLUX.2 Klein 9B?
No. FluxoKit runs the open-weight model in the browser under one subscription with credit based pricing and a 30-day money-back guarantee, no Hugging Face, weights, or GPU setup.
›Can I use FLUX.2 Klein 9B images commercially?
Yes. Images you generate on FluxoKit are yours to use in client work, ads, and products on every plan.
Start creating
Run FLUX.2 Klein 9B in your browser. No API key, no provider account.
Fifty explorations for 100 credits. One studio, more than 100 AI models.
- More than 14,000 generations delivered
- Your first paid subscription includes a 30-day satisfaction guarantee, subject to the Refund Policy.
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