Flux Krea Dev
flux-krea-devAn opinionated text-to-image model from Black Forest Labs in collaboration with Krea that excels in photorealism. Creates images that avoid the oversaturated "AI look".
- Price
- $0.030/image
- Aspect ratios
- 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, 9:21
- Input โ output
- Text โ Image
- Developer
- Black Forest Labs
- Updated
- September 24, 2026
Playground
Try Flux Krea Dev
Input & output
This run
$0.03 ยท 3 credits
For accounts without a purchase: runs above 2 credits need a top-up.
New here?
10 free credits ($0.10) when you sign up with Google
Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.
Examples
Open full sizePrompt
a double exposure photo of a dimly lit close up emotional portrait and a dramatic and epic stormy seascape, the two images seamlessly merge into one
Settings
- aspect_ratio
- 1:1
Open full sizePrompt
Intense action shot of a tennis player in full motion, artistic sports photography
Settings
- aspect_ratio
- 1:1
Open full sizePrompt
White owl, close up portrait, mysterious ghost like owl, low contrast, cinematic dark moody photo, slight blue color grading
Settings
- aspect_ratio
- 1:1
About Flux Krea Dev
Flux Krea Dev is a model by Black Forest Labs in the Image generation category. On Railwail, Flux Krea Dev costs $0.030 per image. Supported aspect ratios: 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, and 9:21.
Pricing
| Per image | $0.030 per image |
|---|
- 1 credit = $0.01
Cost calculator
Price calculator
Total
$3.00
300 credits
Per run
$0.03 ยท 3 credits
Fixed price per run, known before the run starts.
API
curl https://railwail.com/api/v1/images/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux-krea-dev",
"prompt": "A lighthouse on a rocky coast at sunset, photorealistic"
}'import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["RAILWAIL_API_KEY"],
base_url="https://railwail.com/api/v1",
)
image = client.images.generate(
model="flux-krea-dev",
prompt="A lighthouse on a rocky coast at sunset, photorealistic",
)
print(image.data[0].url)import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.RAILWAIL_API_KEY,
baseURL: "https://railwail.com/api/v1",
});
const image = await client.images.generate({
model: "flux-krea-dev",
prompt: "A lighthouse on a rocky coast at sunset, photorealistic"
});
console.log(image.data[0].url);// npm install railwail
import railwail from "railwail";
const rw = railwail(process.env.RAILWAIL_API_KEY);
const res = await rw.image("flux-krea-dev", "A lighthouse on a rocky coast at sunset, photorealistic");
console.log(res.data[0].url);Specifications
- Model ID
flux-krea-dev- Developer
- Black Forest Labs
- Category
- Image generation
- Input
- Text
- Output
- Image
- Aspect ratios
- 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, 9:21
- Billing
- Fixed price, known before the run
- Catalog entry updated
- September 24, 2026
Input parameters
Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.
promptrequiredType: TextDefault: โAllowed values: โaspectRatioType: ChoiceDefault: โAllowed values: 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, or 9:21
Tags
- replicate
- black-forest-labs
- text-to-image
Use cases
Frequently asked questions
What is Flux Krea Dev?
Flux Krea Dev is a model by Black Forest Labs in the Image generation category. On Railwail you can call it with an API key through the Railwail API.
How much does Flux Krea Dev cost on Railwail?
On Railwail, Flux Krea Dev costs $0.030 per image. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals $0.01.
Which settings does Flux Krea Dev support?
According to its input schema, Flux Krea Dev knows these parameters: prompt and aspectRatio (1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, or 9:21).
How fast is Flux Krea Dev?
There are not enough measured runs of Flux Krea Dev on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is Flux Krea Dev better than FLUX 1.1 Pro?
That depends on the task. Flux Krea Dev (Black Forest Labs) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.
Compare Flux Krea Dev and FLUX 1.1 ProHow do I use Flux Krea Dev through the API?
Create a Railwail API key and send your request with the model ID flux-krea-dev. Code examples for curl, Python and JavaScript are in the API section of this page.
Comparable models
All in this category- FLUX 1.1 ProBlack Forest Labs
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
- Flux 1.1 Pro UltraBlack Forest Labs
FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.
- Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
Use Flux Krea Dev via the API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = $0.01.