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FLUX.2 Klein 9B LoRA

wavespeed-ai/flux-2-klein-9b/text-to-image-lora

FLUX.2 [klein] 9B with LoRA support is a high-quality text-to-image model with 9B parameters, offering enhanced realism, crisper text generation, and fast LoRA customization. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Input
width
height
If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Idle

head made of stone of the big art deco sculpture buried in half in icelandic ash on the black desert, late sunset light, intrinsic, photorealistic

Your request will cost $0.015 per run.

For $1 you can run this model approximately 66 times.

ExamplesView all

head made of stone of the big art deco sculpture buried in half in icelandic ash on the black desert, late sunset light, intrinsic, photorealistic
A full-body editorial fashion photoshoot featuring a white male model with green eyes, standing on a wide city avenue lined with tall urban buildings in winter, heavy snowfall dominating the scene, snow-covered streets and sidewalks, icy air visible in breath, overcast winter sky with soft diffused daylight, cool muted color palette, cinematic lighting with gentle rim light through falling snow, high-fashion winter wardrobe with structured silhouettes and flowing fabrics, wind-driven snow adding motion, elegant and dramatic mood, ultra-realistic photography, shallow depth of field, subtle bokeh background, Vogue-style editorial aesthetic, atmospheric urban winter setting
full body Animation Cartoon werewolf man with long white beard wearing black drop shoulder oversize Graphic T shirt and , satan demonic style , evil mode, white eyes, tattoo number 18 on neck , looking to the eyes the sky, concept artt, award of the year, wide view, insanely detailed, comic 3d Render, thick outline stroke , poster style,vivid background
a snowboarder carving through powder, leaving behind an arc of white on the pristine surface of deep blue snow. award-winning photography, in the style of realistic photography.
a small intelligent dog wearing glasses and a purple knit sweater sitting at a laptop, looking at the camera as if welcoming the viewer, soft warm lighting, background in pastel lilac tones, minimalist setup, cozy and photorealistic style, cinematic composition, shallow depth of field, style photographic

README

FLUX.2 Klein 9B Text-to-Image LoRA

FLUX.2 Klein 9B Text-to-Image LoRA is a powerful text-to-image generation model with full LoRA support. With 9B parameters, it delivers higher quality and detail compared to the 4B variant while maintaining fast generation. Apply custom LoRA adapters for personalized styles and characters.

Why Choose This?

  • Enhanced quality 9B parameter model delivers richer detail and better prompt understanding than the 4B variant.

  • LoRA support Apply custom LoRA adapters for personalized styles, characters, or visual aesthetics.

  • Flexible sizing Custom width and height controls for any aspect ratio.

  • Prompt Enhancer Built-in tool to automatically improve your prompts for better results.

  • Balanced performance More capable than 4B while remaining fast and affordable.

Parameters

ParameterRequiredDescription
promptYesText description of the image you want to generate
widthNoOutput width in pixels (default: 1024)
heightNoOutput height in pixels (default: 1024)
lorasNoList of LoRA adapters to apply
seedNoRandom seed for reproducibility (-1 for random)

LoRA Format

Each LoRA in the loras array has:

  • path (required) — URL to the LoRA weights file
  • scale (optional) — Weight multiplier, default 1

How to Use

  1. Write your prompt — describe the image including subject, style, lighting, and mood.
  2. Set size — adjust width and height for your desired dimensions.
  3. Add LoRAs (optional) — click "+ Add Item" to include custom LoRA adapters.
  4. Set seed — use -1 for random, or specify a number for reproducibility.
  5. Run — submit and download the generated image.

Pricing

ItemCost
Per image$0.015

Simple flat-rate pricing regardless of image size or LoRA count.

Best Use Cases

  • Custom Character Generation — Apply character LoRAs for consistent identity.
  • Style Personalization — Use style LoRAs for unique visual aesthetics.
  • Brand Content — Create on-brand visuals with trained LoRA styles.
  • High-Quality Output — When 4B quality isn't enough but full-size models are overkill.
  • Production Work — Balanced quality and cost for professional content.

Pro Tips

  • Be specific in your prompts — include subject, style, lighting, colors, and atmosphere.
  • Start with LoRA scale 1.0 and adjust based on results.
  • Combine multiple LoRAs for hybrid styles (e.g., character + art style).
  • Use the same seed to compare different prompts or LoRA combinations.
  • If your LoRA uses trigger words, include them in your prompt.

Notes

  • LoRAs can be stacked for combined effects.
  • For best results, use LoRAs trained on FLUX-compatible models.
  • 9B model offers better detail than 4B at slightly higher cost.

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