Nano Banana
FLUX1.1 [pro] Ultra — High-Resolution FLUX Images at 4x the Pixels
In November 2024 Black Forest Labs added high-resolution capabilities to FLUX1.1 [pro]: Ultra mode generates images with 4x higher resolution while keeping generation fast. Use it when you need big, detailed FLUX images.
- Black Forest Labs FLUX1.1 [pro] Ultra
- 4x the resolution of 1.1 [pro]
- 2K output
- Fast for its size
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Why FLUX1.1 [pro] Ultra Is a Great AI Image Generator
Ultra is the FLUX1.1 option for large prints, wallpapers and crops: more pixels, more detail, the same familiar look.
4x resolution
BFL's Ultra mode renders at four times the standard pixel count.
Still fast
High resolution without long waits.
Room to crop
Reframe and crop without losing quality.
Familiar FLUX look
Same style as FLUX1.1 [pro].
What FLUX1.1 [pro] Ultra can do
Text to image
Large, detailed images from a prompt.
Cover art
Square covers for albums and podcasts.
Print sizes
Enough pixels for posters.
2K output
Choose 2K, in 1:1 format.
Text-only, no setup
Everything starts from a prompt — no reference images or settings to wrangle.
Up to 4 images per run
Generate 1–4 variations at once and keep the best; each image is billed and refunded on its own.
Use cases
Starting points you can copy into the generator above.
| Use case | Good for | Example prompt |
|---|---|---|
| Wallpapers | Big, crisp backgrounds. | A vast aurora over a frozen lake with snowy mountains, stars, crisp detail |
| Posters | Large-format art. | A detailed botanical illustration of wildflowers and butterflies, vintage scientific plate style |
| Cityscapes | Fine detail at scale. | Aerial view of Tokyo at blue hour, thousands of lit windows, sharp detail |
| Portraits | Sharp, natural portraits. | A close-up portrait of a woman with freckles in soft window light, natural skin texture |
FLUX1.1 [pro] Ultra in 3 steps
- 1
Write a prompt
Describe subject, style, light and any text in quotes.
- 2
Pick size, aspect ratio and count
Choose the resolution, aspect ratio and 1–4 images. The credit cost is shown before you submit.
- 3
Generate and keep your results
Images appear in the generator and are saved to My works. Anything that fails is refunded automatically.
X Posts About FLUX1.1 [pro] Ultra — High-Resolution FLUX Images at 4x the Pixels
- Black Forest Labs@bfl_ai
Today, we are excited to share that we are adding high-resolution capabilities to FLUX1.1 [pro]. Extending its functionality to support 4x higher image resolutions (up to 4MP) while maintaining an impressive generation time of only 10 seconds per sample. pic.twitter.com/tzC9pMVwAM
View on X - Black Forest Labs@bfl_ai
We are excited to release FLUX1.1 [pro], our most advanced and efficient model yet, alongside the general availability of the beta BFL API. pic.twitter.com/EKRb0APJJF
View on X
YouTube Videos About FLUX1.1 [pro] Ultra — High-Resolution FLUX Images at 4x the Pixels
Introducing FLUX 1.1 Pro Ultra: 4x Resolution with 2.5x Faster Speed!
phill ai · YouTube🚀 FLUX Pro 1.1 Ultra In-Depth Look: 4MP Resolution & Raw Mode!
All Your Tech AI · YouTubeFlux Pro 1.1 Ultra & Raw is a Huge Upgrade in AI Image Generation
Matt Farmer AI · YouTubeFlux 1.1 PRO Ultra / RAW 👉 die derzeit beste Bilder-KI der Welt im Test
Robert Leitinger · YouTubeFlux 1.1 Pro Ultra and Raw Modes
Leo Schmidt · YouTube【AI】「Flux1.1 Pro Ultra」高分辨率图像生成
Canada Jasmine Studio · YouTube
Frequently asked questions
2K on this site, in square 1:1.
No. Ultra is a high-resolution mode of FLUX1.1 [pro] from 2024; FLUX.2 Max is a newer, higher-quality model.
19 credits per image. The exact cost is shown before you submit, and failed generations are refunded automatically.
2K; aspect ratio 1:1.
No. FLUX1.1 [pro] Ultra is developed by Black Forest Labs; Nano Banana is an independent service that runs it through a model provider.
Ready for Big, Detailed Shots with FLUX1.1 Ultra?
High-resolution FLUX output up to 2K for wallpapers, prints and hero images.
- Up to 2K output
- Free credits on sign-up
- Failed outputs refunded