Image to ImageFlux 2 Klein 9b

flux-2-klein-9b/edit

flux-2-klein-9b/edit

FLUX.2 [klein] 9B Edit is a high-quality image editing model with 9B parameters, offering precise modifications using natural language instructions. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Parameters

NameTypeDefaultConstraintsDescription
prompt *Prompttextarea—≤ 5000 chars
images *Imagesimage_upload—image/* · 1–3 itemsList of reference image URLs (1-3 images).
sizeSizetext—≤ 500 chars
seedSeednumber—step 1

Output fields

FieldTypeDescription
imagesarray<string>

API

Call this model through one unified REST API. Get a key on the API Keys page.

cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/flux-2-klein-9b/edit" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "prompt": "Replace the overcast sky with a warm golden-hour sunset, brighten the subject slightly, remove the parked cars in the background, and enhance overall color contrast while keeping the scene realistic.",
    "images": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/bd3c343f6556.jpeg"
    ],
    "size": "1024*1024",
    "seed": 42
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"
Python
import time, requests

API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1) Submit
resp = requests.post(
    "https://www.namifusion.com/api/v1/marketplace/run/flux-2-klein-9b/edit",
    headers=HEADERS,
    json={
        "input": {
            "prompt": "Replace the overcast sky with a warm golden-hour sunset, brighten the subject slightly, remove the parked cars in the background, and enhance overall color contrast while keeping the scene realistic.",
            "images": [
                "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/bd3c343f6556.jpeg"
            ],
            "size": "1024*1024",
            "seed": 42
        }
    },
)
resp.raise_for_status()  # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()

# 2) Poll until a terminal state (completed / failed / cancelled).
#    This model is allowed up to 1800s server-side.
deadline = time.time() + 1860
while task.get("status") not in ("completed", "failed", "cancelled"):
    if time.time() > deadline:
        raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
    time.sleep(3)
    poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
    poll.raise_for_status()
    task = poll.json()

print(task["status"], task.get("output"))
JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };

// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/flux-2-klein-9b/edit", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "prompt": "Replace the overcast sky with a warm golden-hour sunset, brighten the subject slightly, remove the parked cars in the background, and enhance overall color contrast while keeping the scene realistic.",
      "images": [
        "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/bd3c343f6556.jpeg"
      ],
      "size": "1024*1024",
      "seed": 42
    }
  }),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();

// 2) Poll until a terminal state (completed / failed / cancelled).
//    This model is allowed up to 1800s server-side.
const deadline = Date.now() + 1860 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
  if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
  if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
  task = await poll.json();
}

console.log(task.status, task.output);

Documentation

flux-2-klein-9b/edit

flux-2-klein-9b/edit

FLUX.2 [klein] 9B Edit is a high-quality image editing model with 9B parameters, offering precise modifications using natural language instructions. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Parameters

ParameterTypeRequiredDefaultLimits / description
promptstringYes—max 5000 chars
imagesarrayYes—1–3 URLs; List of reference image URLs (1-3 images).
sizestringNo—max 500 chars
seedintegerNo—

Image inputs use URL arrays in Nami, including single-image fields. Multi-image edit accepts 1–3 URLs.

Pricing

$0.016 per generated image = 1.6 credits. The price is fixed for this endpoint.

WaveSpeed standard list price; USD 1 = 100 credits. Account discounts are separate.

API

curl -X POST https://www.namifusion.com/api/v1/marketplace/run/flux-2-klein-9b/edit \
  -H "Authorization: Bearer $API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "input": {
    "prompt": "Replace the overcast sky with a warm golden-hour sunset, brighten the subject slightly, remove the parked cars in the background, and enhance overall color contrast while keeping the scene realistic.",
    "images": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/bd3c343f6556.jpeg"
    ],
    "size": "1024*1024",
    "seed": 42
  }
}'
curl 'https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID' \
  -H "Authorization: Bearer $API_KEY"

Submit returns task_uuid. Poll until completed or failed. Successful output: output.images (URL array). This API is asynchronous and returns URLs.

WaveSpeed

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