Flux Kontext Dev

Generate with Flux Kontext Dev via API

Send a POST request to https://stablediffusionapi.com/api/v6/images/img2img with your API key. Get yours at modelslab.com.

curl -X POST 'https://stablediffusionapi.com/api/v6/images/img2img' \
  -H 'Content-Type: application/json' \
  -d '{
  "key": "YOUR_API_KEY",
  "model_id": "flux-kontext-dev",
  "prompt": "make the jacket red and add falling snow",
  "init_image": "https://example.com/input.png"
}'

import requests, json

url = "https://stablediffusionapi.com/api/v6/images/img2img"
payload = json.dumps(json.loads(r'''{
  "key": "YOUR_API_KEY",
  "model_id": "flux-kontext-dev",
  "prompt": "make the jacket red and add falling snow",
  "init_image": "https://example.com/input.png"
}'''))
headers = {'Content-Type': 'application/json'}
response = requests.post(url, headers=headers, data=payload)
print(response.text)

const response = await fetch("https://stablediffusionapi.com/api/v6/images/img2img", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "key": "YOUR_API_KEY",
  "model_id": "flux-kontext-dev",
  "prompt": "make the jacket red and add falling snow",
  "init_image": "https://example.com/input.png"
})
});
const data = await response.json();
console.log(data);

Also searched as

Flux Kontext Dev is also known as: Flux Kontext Dev, flux-kontext-dev, flux kontext dev, fluxkontextdev, flux.kontext.dev. Use it for flux generation, available via the Stable Diffusion API REST API at https://stablediffusionapi.com/api/v6/images/img2img.

FAQ — Flux Kontext Dev

How do I use Flux Kontext Dev via API?

Send a POST request to https://stablediffusionapi.com/api/v6/images/img2img with your API key, prompt, and model_id "flux-kontext-dev". Get an API key from modelslab.com.

Is Flux Kontext Dev free to use?

No. API access requires a paid ModelsLab plan, starting at $21/month (Basic, 3,250 API calls). The $149/month Open Source Unlimited plan includes unlimited generations on open-source models; third-party models are billed separately.

What parameters does Flux Kontext Dev support?

Flux Kontext Dev takes your API key plus: model_id, prompt, init_image. The code sample on this page shows a complete request.

Can I use generated images commercially?

Yes. You retain copyright on all images you generate via the API and can use them commercially.

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