FLUX 1.1 Pro Ultra

Popular
Black Forest Labs
Image Generation

FLUX 1.1 Pro in Ultra mode by Black Forest Labs. Generates up to 4 megapixel images with a raw mode for less processed, more natural-looking photography. Best FLUX option when output resolution and fine detail matter.

Generate with FLUX 1.1 Pro Ultra
Describe what you want and pick a size — the image renders inline.
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TL;DR·Last updated June 24, 2026

FLUX 1.1 Pro Ultra is image generation AI model from Black Forest Labs, priced at €0.000 per 1M input tokens with a unknown context window.

About this model

Ultra is a high-resolution mode of FLUX 1.1 Pro that pushes output up to 4MP while keeping generation time comparable to the standard endpoint. A raw flag reduces the model's tendency to over-stylize, producing images closer to unedited camera output. Useful for print assets and detailed scenes where the base 1MP models fall short.
Try FLUX 1.1 Pro Ultra
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Pricing

Price per Generation
Per generation€5.00

API Integration

Use our OpenAI-compatible API to integrate FLUX 1.1 Pro Ultra into your application.

Install
npm install railwail
JavaScript / TypeScript
import railwail from "railwail";

const rw = railwail("YOUR_API_KEY");

const images = await rw.run("flux-1-1-pro-ultra", "A beautiful sunset over Tokyo");
console.log(images[0].url);

// Or use the image() method for full control
const res = await rw.image("flux-1-1-pro-ultra", "A cat in space", {
  size: "1024x1024",
  n: 1,
});
console.log(res.data[0].url);
Specifications
Price
€5.00
Developer
Black Forest Labs
Category
Image Generation
Supported Formats
text
Tags
replicate
flux
black-forest-labs
text-to-image
high-resolution
flagship

Frequently asked questions

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