# Replace $NUNCHUX_API_KEY with your API key.
# Change output.jpg to the filename you want.
curl -X POST https://api.nunchux.ai/v1/images/generations \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $NUNCHUX_API_KEY" \
  -d '{
    "model": "nunchux-flux.2-klein-4b",
    "prompt": "A beautiful sunset over mountains",
    "tier": "radical_speed",
    "width": 1024,
    "height": 1024,
    "response_format": "b64_json"
  }' | jq -r '.data[0].b64_json // error(.error.message // .detail // tostring)' | base64 -d > output.jpg

import base64
import os
import requests

response = requests.post(
    "https://api.nunchux.ai/v1/images/generations",
    headers={
        "Content-Type": "application/json",
        "X-API-Key": os.environ["NUNCHUX_API_KEY"],
    },
    json={
        "model": "nunchux-flux.2-klein-4b",
        "prompt": "A beautiful sunset over mountains",
        "tier": "radical_speed",
        "width": 1024,
        "height": 1024,
        "response_format": "b64_json",
    },
)

# Decode the base64 image and save it. Change output.jpg to any filename.
image_b64 = response.json()["data"][0]["b64_json"]
with open("output.jpg", "wb") as f:
    f.write(base64.b64decode(image_b64))

import { writeFile } from "node:fs/promises";

const response = await fetch("https://api.nunchux.ai/v1/images/generations", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-API-Key": process.env.NUNCHUX_API_KEY,
  },
  body: JSON.stringify({
    model: "nunchux-flux.2-klein-4b",
    prompt: "A beautiful sunset over mountains",
    tier: "radical_speed",
    width: 1024,
    height: 1024,
    response_format: "b64_json",
  }),
});

const data = await response.json();

// Decode the base64 image and save it. Change output.jpg to any filename.
await writeFile("output.jpg", Buffer.from(data.data[0].b64_json, "base64"));