What FLUX 3 Image does
FLUX 3 Image is the image generation and editing model in Black Forest Labs' FLUX 3 family. Besides ordinary text prompts, it lets you lay out a picture by drawing boxes on a canvas and describing what goes in each one, which gives tight control over composition. It can also edit selected parts of an existing image, apply several edits at once, combine up to 10 reference images and output native 2K or 4K. You use it through BFL's API or web Playground and pay per image.
Best for
- Developers adding image generation to an app
- Designers who need exact control over layout
- Editing parts of a photo without changing the rest
- Companies licensing a model to run on their own servers
Key features
Box-based layout
Place bounding boxes on a 0–1000 grid and describe each one to decide where objects appear.
Targeted editing
Change chosen regions of an existing image, or make several edits in one pass, while the rest stays the same.
Multi-reference scenes
Combine up to 10 reference images into a single new picture.
Native 2K and 4K
Generate directly at high resolution, priced per resolution tier.
Klein variant
A smaller FLUX 3 Image Klein model costs a fraction of the full model per image.
API and Playground
Call it from the BFL API with docs and a dashboard, or try it in the browser Playground.
FLUX 3 Image pricing
FLUX 3 Image has no free plan. Paid plans start at $0.008 per 768×768 image. BFL states there are no subscriptions or seat fees for the API; you pay per generated image. No free credits were listed on the pricing page. Prices checked on the official site on Nov 9, 2026.
| FLUX 3 Image Klein (pay as you go) | $0.008 per 768×768 image | $0.009 at 1K, $0.036 at 4K |
|---|---|---|
| FLUX 3 Image (pay as you go) | $0.041 per 768×768 image | $0.048 at 1K, $0.10 at 2K, $0.607 at 4K |
| Builder / Platform licenses | Contact sales | Self-hosting licenses with monthly image caps; price not listed |
| Enterprise | Contact sales | Custom; contact sales |
Source: FLUX 3 Image pricing page
Pros and cons
What it does well
- Box-based prompting gives more layout control than text prompts alone.
- Pay-per-image pricing with no subscription suits uneven usage.
- Companies can license the model to fine-tune and run on their own infrastructure.
Know before you sign up
- It is aimed at developers; there is no consumer app beyond the web Playground.
- 4K images from the full model cost about $0.61 each.
- Self-hosted commercial weights require contacting sales.
Alternatives to FLUX 3 Image
Bing Image CreatorCreate and remix images from prompts.- MidjourneyGenerate and refine images from prompts and references.
Stable DiffusionUse an image-model family for generation.
Adobe FireflyGenerate visual and audio creative assets.
CanvaCreate visual assets with Canva AI design tools.
ClipdropEdit and generate images in a visual suite.
Questions about FLUX 3 Image
What is FLUX 3 Image?
FLUX 3 Image is the image generation and editing model in Black Forest Labs' FLUX 3 family. Besides ordinary text prompts, it lets you lay out a picture by drawing boxes on a canvas and describing what goes in each one, which gives tight control over composition. It can also edit selected parts of an existing image, apply several edits at once, combine up to 10 reference images and output native 2K or 4K. You use it through BFL's API or web Playground and pay per image.
Is FLUX 3 Image free?
FLUX 3 Image has no free plan. Paid plans start at $0.008 per 768×768 image. BFL states there are no subscriptions or seat fees for the API; you pay per generated image. No free credits were listed on the pricing page. Prices checked on the official site on Nov 9, 2026.
How much does FLUX 3 Image cost?
Paid plans start at $0.008 per 768×768 image; plans listed on the official pricing page: FLUX 3 Image Klein (pay as you go) ($0.008 per 768×768 image), FLUX 3 Image (pay as you go) ($0.041 per 768×768 image), Builder / Platform licenses, Enterprise. BFL states there are no subscriptions or seat fees for the API; you pay per generated image. No free credits were listed on the pricing page.
Who is FLUX 3 Image best for?
Developers adding image generation to an app, Designers who need exact control over layout, Editing parts of a photo without changing the rest and Companies licensing a model to run on their own servers.
Where can I use FLUX 3 Image?
FLUX 3 Image is available on Web and API, according to its official site.
What are some alternatives to FLUX 3 Image?
Similar image & design tools include Bing Image Creator, Midjourney, Stable Diffusion and Adobe Firefly. Compare them on the Image & design page.