Text to image
Elo · text-to-image arena
Custom pricing for production workloads
Preview release of the compact FLUX.2 Klein 9B model.
blackforestlabs/flux-2-klein-9b-previewPOST https://api.aimlapi.com/v1/images/generationsWhat is FLUX.2 Klein 9B Preview API?
Preview release of the compact FLUX.2 Klein 9B model.
FLUX.2 Klein 9B Preview API Pricing
- Pricing on request
Where to Use FLUX.2 Klein 9B Preview
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.
Human-preference results for FLUX.2 Klein 9B Preview in text to image, next to models available on AI/ML API. Data retrieved Nov 3, 2026.
Elo · text-to-image arena
USD per Megapixel
Arena results for models you can call with the same API key.
Blind pairwise human votes on images generated from text prompts. FLUX.2 Klein 9B Preview ranks #68 of 98.
| Usage | Price | Unit |
|---|---|---|
| Image generation | $0.015 | per Megapixel |
The final price depends on request parameters such as resolution or duration.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
AI/ML API rates for 5 models, per Megapixel.
| Model | Per Megapixel |
|---|---|
| $0.015 | |
| $0.014 | |
| $0.015 | |
| $0.03 | |
| $0.05 |
Give your agent the model details, code and documentation.
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"curl '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 ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lettering on the glass reads OPEN LATE. Warm lamp light inside, raindrops and blurred neon reflections outside, 35mm film photo."
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "blackforestlabs/flux-2-klein-9b-preview",
"prompt": "A ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lettering on the glass reads OPEN LATE. Warm lamp light inside, raindrops and blurred neon reflections outside, 35mm film photo."
}
response = requests.post("https://api.aimlapi.com/v1/images/generations", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = 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 ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lettering on the glass reads OPEN LATE. Warm lamp light inside, raindrops and blurred neon reflections outside, 35mm film photo."
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());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 costs $0.015 per Megapixel on AI/ML API, billed as you go with no subscription.
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.
Use blackforestlabs/flux-2-klein-9b-preview as the model parameter. Requests go to https://api.aimlapi.com/v1/images/generations with your AI/ML API key.