New
FLUX 3 ImageAI image generator
Black Forest Labs' FLUX 3: generation and edits with up to 10 references, up to 4K. On Leap, it sits beside 171 other models in one studio.
- Text to image
- Image edit
- 14 aspect ratios
- Start free, no card
- Every top model, one account
- Pay per run, priced before it starts
AI image generator
FLUX 3 Image at a glance
FLUX 3 Image is an image model from Black Forest Labs. It makes images from words or up to 10 photos, at up to 4K.
- Made by
- Black Forest Labs
- Makes
- Images
- Starts from
- Words or up to 10 photos
- Resolution
- 1K, 2K or 4K
- Shapes
- 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9, 2:1, 1:2, 7:5, 5:7, 5:4, 4:5
- Per run
- Up to 4 images
- Prompt
- Up to 4,000 characters
- Price per run
- $0.0264 to $0.33385
- On Leap since
- October 6, 2026
- Updated
- October 6, 2026
- 01Describe it, or start from a photo
- 02See the exact price, then press go
- 03Keep it in your library, or take it further
Made on Leap
More from FLUX 3 Image
From the paint aisle to prom night, 1976
Make your version
Pick the right one
FLUX 3 Image and its siblings
| Model | Best for | Resolution | Price per run |
|---|---|---|---|
| FLUX 3 Image (this page) | Black Forest Labs' FLUX 3: generation and edits with up to 10 references, up to 4K. | Up to 4K | $0.0264 to $0.33385 |
| FLUX.1 [schnell] | Fast, low-cost text to image. Good for drafts and volume. | – | $0.0033 |
| FLUX.2 [pro] | Black Forest Labs' second generation: sharper detail and text than FLUX1.1, at a lower price. | – | $0.033 |
| FLUX.2 [flex] | FLUX.2 tuned for typography and fine detail, such as posters and layouts. | – | $0.055 |
Side by side
More image models on Leap
No prompt needed
Or start from a recipe
Recipes write the prompt for you: add a photo, pick a look, and get a finished result.
Questions
FLUX 3 Image, answered
- What is FLUX 3 Image?
- FLUX 3 Image is an image model from Black Forest Labs. Black Forest Labs' FLUX 3: generation and edits with up to 10 references, up to 4K. On Leap it runs in one studio beside every other top model, with one account.
- Can FLUX 3 Image start from a photo?
- Yes. FLUX 3 Image starts from words or up to 10 photos.
- What resolution and sizes does it make?
- Up to 4K, in 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9, 2:1, 1:2, 7:5, 5:7, 5:4 or 4:5.
- How is it different from FLUX.1 [schnell], FLUX.2 [pro] and FLUX.2 [flex]?
- FLUX 3 Image: Black Forest Labs' FLUX 3: generation and edits with up to 10 references, up to 4K. FLUX.1 [schnell]: Fast, low-cost text to image. Good for drafts and volume. FLUX.2 [pro]: Black Forest Labs' second generation: sharper detail and text than FLUX1.1, at a lower price. FLUX.2 [flex]: FLUX.2 tuned for typography and fine detail, such as posters and layouts. They all run in the same studio, so you can try one prompt on each.
- How much does a run cost?
- A 1K image costs $0.0264 at the default settings. By resolution, a run costs $0.0264 to $0.33385. You see the exact price before you press go, and a run that fails costs nothing.
- Is FLUX 3 Image free to try?
- Yes. Sign up with a Gmail, Outlook or work address and you start with $2 of free credit, no card needed. The cheapest run is $0.0264 (a 1K image), so the credit covers 75 of those. After that you pay per run, in dollars, with no subscription.
- Can I use what I make commercially?
- Yes. You own what you make on Leap, so you can use it commercially, and we never train AI on it. The people and brands shown in a result can still have rights in it; the Terms say more.
- Is there an API?
- Yes. Leap's REST API runs it as black-forest-labs/flux-3-image, at the same price per run as the studio, and agents can call it through Leap's MCP server. The request is at the bottom of this page.
- Do I need a Black Forest Labs account?
- No. Leap sends your request to Black Forest Labs' model and gives you what it makes. One Leap account runs FLUX 3 Image and every other model, in the studio, through the API and from your agents.
Your idea, FLUX 3 Image.
Start free, no card. Every run shows its price before it starts.
Make it with FLUX 3 ImageFor developers
Run FLUX 3 Image from code
- Model ID
- black-forest-labs/flux-3-image
- Makes
- Image
- Pricing
- Per run, quoted first: POST /v1/quotes
Inputs
What the model takes. Leave out anything with a default.
Promptprompt
Text, up to 4,000 characters, required
Reference imagesimages
Up to 10 imagesUploaded files to edit or combine, by ID.
Aspect ratioaspect_ratio
1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9, 2:1, 1:2, 7:5, 5:7, 5:4, 4:5. Default: 1:1
Imagesn
1 to 4. Default: 1
Resolutionsettings.resolution
1K, 2K, 4K. Default: 1K
Seedseed
0 to 4294967295The same seed and input give the same image.
The request
The same envelope for every model; only the model and its input change. With prefer: wait=60 the answer holds the result when the run finishes within a minute; a longer one is read again by its ID. Agents can call it through the MCP server at app.tryleap.ai/api/mcp.
curl https://api.tryleap.ai/v1/generations \ -H "x-api-key: $LEAP_API_KEY" \ -H "content-type: application/json" \ -H "prefer: wait=60" \ -d '{ "model": "black-forest-labs/flux-3-image", "input": { "prompt": "A paper boat drifting down a rainy street at dusk" } }' # Video often outlasts the wait and answers "queued" or "running".# Put its "id" in GENERATION_ID and read it again until it is done:# curl https://api.tryleap.ai/v1/generations/$GENERATION_ID -H "x-api-key: $LEAP_API_KEY"