What is FLUX.2 Klein 9B Preview API?
Preview release of the compact FLUX.2 Klein 9B model.
Technical Specifications
- Supported inputs: Image, Text
- Output: Image
- Endpoint: /images/generations
Performance Benchmarks
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FLUX.2 Klein 9B Preview API Pricing
- Pricing on request
Where to Use FLUX.2 Klein 9B Preview
High-volume image generation
Produce product visuals, thumbnails, and marketing assets programmatically at scale.
Creative and concept art
Turn text prompts into illustrations, mockups, and design explorations.
Image editing and variations
Provide a reference image to guide edits, restyles, or variations.
Code Sample
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Generate or edit images from text prompts. It is documented for image generation and image-to-image editing workflows, including prompts with optional photos.
Create ad variants with consistent faces and product mockups in different contexts. The documentation also gives fashion editorials as an example where model identity stays consistent across complex scenes.
Use it for real-time, interactive image applications. The model is described as fast enough for prompt-and-preview workflows and as suitable for production apps where latency matters.
Use it for multi-reference image editing. The docs specifically note maintaining identity across complex scenes and support for advanced editing workflows with multiple reference images.
import requests r = requests.post( "https://api.aimlapi.com/v1/images/generations", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "blackforestlabs/flux-2-klein-9b-preview", "prompt": "A cat holding a sign that says hello" }, ) print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/images/generations", { method: "POST", headers: { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ "model": "blackforestlabs/flux-2-klein-9b-preview", "prompt": "A cat holding a sign that says hello" }), }); console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/images/generations \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"blackforestlabs/flux-2-klein-9b-preview","prompt":"A cat holding a sign that says hello"}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Output | |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
FLUX.2 Klein 9B Preview This page | Image generation at scale | |||
| Image generation at scale | ||||
| Image generation at scale | ||||
| Image generation at scale | ||||
| Image generation at scale |
FLUX.2 Klein 9B Preview takes image, text as input and returns image.
FLUX.2 Klein 9B Preview became available on June 12, 2026.
FLUX.2 Klein 9B Preview is priced at $0.0195 / MP (variable).
FLUX.2 Klein 9B Preview is billed per generation — a fixed charge per output rather than by prompt length.
Yes, FLUX.2 Klein 9B Preview accepts image input as well as a text prompt.
FLUX.2 Klein 9B Preview was built by Black Forest Labs.
Send a request to https://api.aimlapi.com/v1/images/generations with blackforestlabs/flux-2-klein-9b-preview as the model id.
Yes. FLUX.2 Klein 9B Preview is served through AI/ML API, so the same key and endpoint format used for other models applies.
It is a preview release of the compact FLUX.2 Klein 9B model from Black Forest Labs.
