# FLUX1.1 Pro Ultra AI Image Generator

> The high-resolution FLUX1.1 Pro tier for natural photography, detailed materials and reference-guided renders.

Canonical URL: https://allimageai.com/models/flux-1-1-pro-ultra/

Website: All Image AI

Language: English

FLUX1.1 Pro Ultra is the high-resolution member of the FLUX1.1 Pro line. It produces detailed 2K images, offers a less processed Raw mode and can use one image as visual guidance without switching to an unrelated model.

## Model details

- Developer: Black Forest Labs
- Status on All Image AI: Active
- Last verified: 2026-08-25
- Maximum output: 2K
- Modes: Text to Image, Image to Image
- Reference images: up to 1
- Resolutions: 2K
- Aspect ratios: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9

## Best for

- Natural-looking photography
- Material and product detail
- 2K hero images
- Single-reference visual direction

## How to use

1. Write the subject, lighting and camera treatment.
2. Upload one reference when composition matters.
3. Enable Raw for natural photography.
4. Generate at the native 2K tier.

## Settings explained

### Raw Photo Mode

Reduces the polished synthetic look for more candid photographic texture.

### Reference Strength

Start at 0.1; raise it only when the source composition must remain recognisable.

## Prompt examples

### Natural portrait

> Editorial portrait beside a rain-streaked cafe window, natural skin texture, soft overcast light, 85mm lens, restrained colour grade

### Reference direction

> Keep the reference composition, replace the object with a brushed titanium speaker, soft studio reflections, premium product photography

## Limitations

- The exact endpoint outputs its native 2K tier
- One reference image maximum
- Newer FLUX.2 models follow complex edits more closely

## Pricing and credits

Credits for one image at default quality and mode. Resolution, quality, reference inputs, edit mode and output count can change the total. Check the Generate button before submitting.

| Resolution | Credits / image |
| --- | --- |
| 2K | 5 |

Failed generations cost 0 credits. Catalog availability does not guarantee runtime availability; the workspace reports whether the selected model can run.

[Credit plans](https://allimageai.com/pricing.md)

## Test results

Testing in progress. No verified benchmark scores have been published for this model.

## Commercial use and image handling

Commercial use is subject to Black Forest Labs' model terms and the selected service terms.

Uploads are processed by the configured inference service. You can delete a generation from your history.

## Frequently asked questions

### How is this different from FLUX.2 Pro?

Ultra is the high-resolution FLUX1.1 endpoint with Raw mode; FLUX.2 Pro is newer and better suited to complex multi-reference work.

### Why is there only one resolution?

The verified endpoint exposes aspect ratio but no separate resolution selector, so the page labels its native 2K output instead of inventing a tier.

## Release history and sources

November 6, 2024 — Ultra mode introduced

This date applies to the event shown. Later API access, weights and availability on All Image AI may have different dates.

- [bfl.ai](https://bfl.ai/blog/24-11-06-ultra)

[Event evidence on the timeline](https://allimageai.com/timeline/#event-flux-1-1-pro-ultra)

## Other versions

- [FLUX.2 Max](https://allimageai.com/models/flux-2-max.md): Typography · 2K
- [FLUX.2 Flex](https://allimageai.com/models/flux-2-flex.md): Adjustable steps · 2K
- [FLUX.2 Flash](https://allimageai.com/models/flux-2-flash.md): 4 references · 2K
- [FLUX.2 Turbo](https://allimageai.com/models/flux-2-turbo.md): Low-cost · 2K
- [FLUX.2 Klein 4B](https://allimageai.com/models/flux-2-klein-4b.md): 4–8 steps · 2K
- [FLUX.1 Kontext Max](https://allimageai.com/models/flux-kontext-max.md): Premium edit · 1K
- [FLUX.1 Kontext Pro](https://allimageai.com/models/flux-kontext-pro.md): Iterative edit · 1K
- [FLUX1.1 Pro](https://allimageai.com/models/flux-1-1-pro.md): Photographic · 2K
- [FLUX.1 Dev](https://allimageai.com/models/flux-1-dev.md): Tunable · 2K
- [FLUX.1 Schnell](https://allimageai.com/models/flux-1-schnell.md): 1 credit · 1K
- [FLUX.2](https://allimageai.com/models/flux-2.md): Recommended · 4MP
- [FLUX.2 Klein](https://allimageai.com/models/flux-2-klein.md): Fastest · 1K