# FLUX.2 Flex AI Image Generator

> FLUX.2 with explicit guidance and step controls for typography-heavy final renders.

Canonical URL: https://allimageai.com/models/flux-2-flex/

Website: All Image AI

Language: English

FLUX.2 Flex is the tunable member of the FLUX.2 family. Guidance and inference steps are exposed for jobs where prompt adherence and typography need deliberate adjustment instead of a fixed speed-quality preset.

## Model details

- Developer: Black Forest Labs
- Status on All Image AI: Active
- Last verified: 2026-08-25
- Maximum output: 2K
- Modes: Text to Image
- Reference images: not supported
- Resolutions: 1K, 2K
- Aspect ratios: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3

## Best for

- Typography-heavy art
- Controlled prompt adherence
- Material and lighting studies
- Seeded parameter comparisons

## How to use

1. Start at 1K with the defaults.
2. Fix the seed before comparing settings.
3. Change one control at a time.
4. Move only the winning setup to 2K.

## Settings explained

### Guidance

Start at 3.5; raise it only when important prompt details are being ignored.

### Steps

28 is the default quality point. Use fewer for drafts and more for difficult text or detail.

## Prompt examples

### Type and texture

> Brushed aluminium sign reading “FLEX”, condensed black lettering, grazing studio light, crisp engraved edges

### Material study

> Translucent cobalt glass sculpture on rough limestone, hard afternoon sun, realistic caustics, editorial still life

## Limitations

- Reference editing is not enabled on this route
- 2K costs materially more because billing follows megapixels
- Too much guidance can flatten natural texture

## 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 |
| --- | --- |
| 1K | 4 |
| 2K | 15 |

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 and service terms.

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

## Frequently asked questions

### How is Flex different from FLUX.2?

Flex exposes step and guidance controls; the standard FLUX.2 page is the simpler production default.

### Why is editing not shown?

Reference-image billing varies with every input megapixel, so it stays disabled until the app can meter that cost before charging.

## Release history and sources

November 25, 2025 — Model announced

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/flux-2)

[Event evidence on the timeline](https://allimageai.com/timeline/#event-flux-2-flex)

## Other versions

- [FLUX.2 Max](https://allimageai.com/models/flux-2-max.md): Typography · 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 Ultra](https://allimageai.com/models/flux-1-1-pro-ultra.md): Raw mode · 2K
- [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