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.
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.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.025 per generation | Flat per-image price for the 9B LoRA variant, regardless of LoRA count. |
| Fal.ai | Not available | Flux-2 Klein 9B with LoRA is not generally available on Fal.ai at the time of writing. |
| Replicate | Not available | Flux-2 Klein 9B with LoRA is not generally available on Replicate at the time of writing. |
Flat per-image price for the 9B LoRA variant, regardless of LoRA count.
Flux-2 Klein 9B with LoRA is not generally available on Fal.ai at the time of writing.
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.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Text prompt describing the image. | A regal fantasy queen on a crystal throne, ornate crown, ethereal lighting, cinematic detail. |
| LoRA List | array | Up to 3 LoRA adapters to apply during generation. | [object Object] |
| Aspect Ratio | Enum (7 options) | The aspect ratio of the generated image | 1:1 |
Text prompt describing the image.
A regal fantasy queen on a crystal throne, ornate crown, ethereal lighting, cinematic detail.Up to 3 LoRA adapters to apply during generation.
[object Object]The aspect ratio of the generated image
1:1Developer documentation
Write your prompt: Describe the subject and scene. The 9B base handles richer compositions and lighting cues than the 4B.
Add LoRA adapters: Provide up to 3 entries in lora_list, each with a path and a scale.
Pick an aspect ratio: Choose from 1:1, 16:9, 9:16, 3:4, 4:3, 21:9, or 9:21.
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.
Frequently asked
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.
Up to three LoRA adapters per request, each with its own `path` and `scale`.
Yes. The LoRA influences style and content regardless of framing; the aspect ratio only controls output dimensions.