AI image API · fast
Fast Lightning SDXL API pricing per image
Generate images with fast's Fast Lightning SDXL through the Cut.Pro API. You see the price before you generate and pay only for what you use.
- Pay as you go, no subscription
- 15 free credits on a new account
- Free quote before every call
From$0.0032per imageR$0.0109 · 1 credit10 images: $0.0325Updated November 07, 2026
Pricing
Fast Lightning SDXL pricing by mode and resolution
| Mode | Resolution | Price per image | In reais | Credits |
|---|---|---|---|---|
| With references | 1080p | $0.0032 | R$0.0109 | 1 credit |
Updated November 07, 2026. Prices use the cheapest credit pack: 1 credit costs $0.0179 (R$0.0599).
Limits
What Fast Lightning SDXL accepts in each request
- Modes
- With references
- Resolutions
- 1080p
- Reference images
- up to 1
Code
How to call Fast Lightning SDXL free quote, generation and result
BODY='{"model":"fast/fast-lightning-sdxl","prompt":"product photo of a white sneaker on a studio background"}'
CREDITS=$(curl -s -X POST https://api.cut.pro/api/v1/generations/quote \
-H "X-Api-Key: $CUTPRO_API_KEY" \
-H "Content-Type: application/json" \
-d "$BODY" | jq .credits)
curl -X POST "https://api.cut.pro/api/v1/generations?wait=60" \
-H "X-Api-Key: $CUTPRO_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d "$(jq -c --argjson credits "$CREDITS" '. + {credits: $credits}' <<< "$BODY")"const api = "https://api.cut.pro/api/v1";
const headers = { "X-Api-Key": process.env.CUTPRO_API_KEY, "Content-Type": "application/json" };
const body = {
model: "fast/fast-lightning-sdxl",
prompt: "product photo of a white sneaker on a studio background",
};
const quote = await fetch(`${api}/generations/quote`, { method: "POST", headers, body: JSON.stringify(body) }).then((res) => res.json());
let generation = await fetch(`${api}/generations?wait=60`, {
method: "POST",
headers: { ...headers, "Idempotency-Key": crypto.randomUUID() },
body: JSON.stringify({ ...body, credits: quote.credits }),
}).then((res) => res.json());
while (generation.status === "processing") {
generation = await fetch(`${api}/generations/${generation.id}?wait=60`, { headers }).then((res) => res.json());
}
console.log(generation.output?.url ?? generation.error_code);import os, uuid, requests
API = "https://api.cut.pro/api/v1"
headers = {"X-Api-Key": os.environ["CUTPRO_API_KEY"]}
body = {
"model": "fast/fast-lightning-sdxl",
"prompt": "product photo of a white sneaker on a studio background",
}
quote = requests.post(f"{API}/generations/quote", json=body, headers=headers).json()
generation = requests.post(
f"{API}/generations",
params={"wait": 60},
json={**body, "credits": quote["credits"]},
headers={**headers, "Idempotency-Key": str(uuid.uuid4())},
).json()
while generation["status"] == "processing":
generation = requests.get(f"{API}/generations/{generation['id']}", params={"wait": 60}, headers=headers).json()
print(generation["output"]["url"] if generation["status"] == "ready" else generation["error_code"])Read the docsQuestions
API questions before your first call
- At 1080p, each image costs $0.0032 and 10 images come to $0.0325 (R$0.11, 2 credits).
- Create an account, make a key and send the request to the quote, which charges nothing. The 15 free credits cover 82 images with Fast Lightning SDXL.
- No. Buy a credit pack by card, or in reais with Pix from Brazil, and spend it on Fast Lightning SDXL and every other model with the same key.
- No. The Cut.Pro key calls Fast Lightning SDXL without a fast account, with one balance for every model in the catalog.
- Yes. With a CPF or CNPJ and full address in your billing details, the nota fiscal is issued after each payment is confirmed.
Still missing one? Help center
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Generate with Fast Lightning SDXL today
Create a key, get a free quote and pay only for what you generate.
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