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models/FLUX - Pro 1.1 Ultra

FLUX - Pro 1.1 Ultra

Kate Thompson
|
7/1/2025
|
1:39:57 PM
| Discussion|
0
Digital illustration of a pale, mysterious hand with red nails reaching forward, adorned with a detailed gothic-inspired bracelet, set against a solid black background, with a glowing red eye visible in the shadows.
Hand-painted abstract double exposure showing a devastated dystopian city in ruins reflected in storm-tossed crashing waves above, with no sky visible.
Portrait of a young blond woman with big blue eyes, long straight hair with bangs, and a soft dramatic lighting emphasizing her contemplative expression against a dark background.
Watercolor painting of a swirling sandstorm forming a djinn's face over a desert at sunset, with a withered tree and lone figure on rocky dunes.
A surreal human heart with a melancholic face playing a violin, standing on long thin legs with bare feet against a blue watery background.
A vibrant abstract artwork showcasing a man's captivating blue eye surrounded by swirling sapphire blue and gold flecks, with ethereal brushstrokes and flowing eyelashes.
Black and orange sketch of a flock of ravens with comic book dynamism and radiant clusters, in a rough, blurry style.
A noir black and orange sketch featuring a dense flock of dark, moody emoji faces with expressive, rough outlines and a blurry effect.
Abstract fragmented grayscale portrait of corrupted Mr. Negative with digital manipulation and selective color effects
Close-up of fire ants with black bodies engulfed in vivid orange flames, glowing fiery eyes, and detailed, ghostly, ethereal textures against an ashen grey smoky background.
A stylized battle scene between two folded paper kingdoms with origami swans flying above, calligraphy-covered towers, and red ink-stained landscape.
Surreal and hyper-detailed portrait of a woman with blue face paint and red eyes, surrounded by abstract colorful shapes, flowers, and a cracked canvas texture.

Recommended Prompts

Cinematic shot, 8k, detailed textures

Recommended Parameters

samplers

Undefined, Euler

steps

30 - 33

cfg

3.5 - 7.5

clip skip

2

resolution

1536x2752

Tips

Check out the Quickstart Guide to Flux for all the info you need to get started!

Use the reference implementation and sampling code available in the official GitHub repository as a starting point for development and creative projects.

Version Highlights

Pro 1.1 Ultra is not available for download and is accessible via API generation only! Download is disabled.

Creator Sponsors

Please check out the Quickstart Guide to Flux for all the info you need to get started!

Please check out the Quickstart Guide to Flux for all the info you need to get started!

FLUX.1 [dev] is a 12 billion parameter rectified flow transformer capable of generating images from text descriptions. For more information, please read our blog post.

Key Features

  1. Cutting-edge output quality, second only to our state-of-the-art model FLUX.1 [pro].

  2. Competitive prompt following, matching the performance of closed source alternatives .

  3. Trained using guidance distillation, making FLUX.1 [dev] more efficient.

  4. Open weights to drive new scientific research, and empower artists to develop innovative workflows.

  5. Generated outputs can be used for personal, scientific, and commercial purposes as described in the flux-1-dev-non-commercial-license.

Usage

We provide a reference implementation of FLUX.1 [dev], as well as sampling code, in a dedicated github repository. Developers and creatives looking to build on top of FLUX.1 [dev] are encouraged to use this as a starting point.

Learn More Here:
https://huggingface.co/black-forest-labs/FLUX.1-dev

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Model Details

Model type

Checkpoint

Base model

Flux.1 D

Model version

Pro 1.1 Ultra

Model hash

61eb3c02b1

Discussion

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Images by FLUX - Pro 1.1 Ultra

base model Images