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

ModeResolutionPrice per imageIn reaisCredits
With references1080p$0.0032R$0.01091 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")"
Read the docs

Questions

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.

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