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FLUX.2 with LoRA: Lora Support

Flux-2-Klein-9B Text-to-Image with LoRA combines the higher-fidelity Klein 9B base with custom LoRA adapters for richer textures and lighting under a chosen style. Ideal for premium stylized illustrations, branded character art, and polished marketing visuals.

Interactive model controls

Flux-2-Klein-9B Text-to-Image with LoRA combines the higher-fidelity Klein 9B base with custom LoRA adapters for richer textures and lighting under a chosen style. Ideal for premium stylized illustrations, branded character art, and polished marketing visuals.

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Overview

About this model

Flux-2-Klein-9B Text-to-Image with LoRA pairs the higher-fidelity Klein 9B base model with custom LoRA adapters, delivering richer textures, lighting, and composition under your chosen style. It is the right pick when you need premium stylized illustrations, polished marketing visuals, or character art where detail retention matters as much as the LoRA's signature look.

Like the 4B variant, you can stack up to three LoRAs per generation, each with its own scale weight, and pick from a flexible set of aspect ratios. The model is optimized to keep the LoRA's stylistic cues intact while still benefiting from the 9B base's stronger prompt adherence.

1Premium stylized illustrations for editorial and marketing
2High-fidelity character art driven by a fine-tuned LoRA
3Polished concept art with consistent brand styling
4Hero images and feature artwork that combine prompt control with a custom look
5LoRA-driven generation for print and large-format assets
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Pricing & Value

Cost analysis

muapiapp$0.025 per generation

Flat per-image price for the 9B LoRA variant, regardless of LoRA count.

Fal.aiNot available

Flux-2 Klein 9B with LoRA is not generally available on Fal.ai at the time of writing.

ReplicateNot available

Flux-2 Klein 9B with LoRA is not generally available on Replicate at the time of writing.

** Competitor pricing is estimated based on similar model architectures and usage tiers.

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Technical Details

Configuration schema

Promptstring

Text prompt describing the image.

Default ValueA regal fantasy queen on a crystal throne, ornate crown, ethereal lighting, cinematic detail.
LoRA Listarray

Up to 3 LoRA adapters to apply during generation.

Default Value[object Object]
Aspect RatioEnum (7 options)

The aspect ratio of the generated image

Default Value1:1
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Implementation Guide

Developer documentation

How to Use Flux-2-Klein-9B Text-to-Image with LoRA

  1. Write your prompt: Describe the subject and scene. The 9B base handles richer compositions and lighting cues than the 4B.

  2. Add LoRA adapters: Provide up to 3 entries in lora_list, each with a path and a scale.

  3. Pick an aspect ratio: Choose from 1:1, 16:9, 9:16, 3:4, 4:3, 21:9, or 9:21.

  4. Submit and refine: Call flux-2-klein-9b-text-to-image-lora. The result returns asynchronously as an image URL. Adjust the LoRA scale or prompt and rerun for refinement.

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Common Questions

Frequently asked

When should I pick 9B over 4B for LoRA generation?

Pick 9B when you need higher fidelity, more detailed lighting, or stronger prompt adherence. Pick 4B when speed and cost matter more than per-image detail.

How many LoRAs can I apply at once?

Up to three LoRA adapters per request, each with its own `path` and `scale`.

Will the LoRA still be respected at non-square aspect ratios?

Yes. The LoRA influences style and content regardless of framing; the aspect ratio only controls output dimensions.