FLUX.1 Kontext [pro]AI image editor
Edits an image from plain instructions, from a small fix to a new scene. On Leap, it sits beside 174 other models in one studio.
- Image edit
- 9 aspect ratios
- No subscription
- Every top model, one account
- Pay per run, priced before it starts
AI image editor
FLUX.1 Kontext [pro] at a glance
FLUX.1 Kontext [pro] is an image editing model from Black Forest Labs. It makes images from words or a photo.
- Made by
- Black Forest Labs
- Makes
- Images
- Starts from
- Words or a photo
- Shapes
- 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 9:21
- Per run
- Up to 4 images
- Prompt
- Up to 4,000 characters
- Price per run
- $0.054
- Updated
- October 5, 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.1 Kontext [pro]
The laundromat, moved to 2 a.m.
A platinum bob, shaved to a bleached buzz
Pick the right one
FLUX.1 Kontext [pro] and its siblings
| Model | Best for | Price per run |
|---|---|---|
| FLUX.1 Kontext [pro] (this page) | Edits an image from plain instructions, from a small fix to a new scene. | $0.054 |
| FLUX.1 [schnell] | Fast, low-cost text to image. Good for drafts and volume. | $0.006 |
| FLUX.2 [pro] | Black Forest Labs' second generation: sharper detail and text than FLUX1.1, at a lower price. | $0.041 |
| FLUX.2 [flex] | FLUX.2 tuned for typography and fine detail, such as posters and layouts. | $0.068 |
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.1 Kontext [pro], answered
- What is FLUX.1 Kontext [pro]?
- FLUX.1 Kontext [pro] is an image editing model from Black Forest Labs. Edits an image from plain instructions, from a small fix to a new scene. On Leap it runs in one studio beside every other top model, with one account.
- Can FLUX.1 Kontext [pro] start from a photo?
- Yes. FLUX.1 Kontext [pro] starts from words or a photo.
- What resolution and sizes does it make?
- 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16 or 9:21.
- How is it different from FLUX.1 [schnell], FLUX.2 [pro] and FLUX.2 [flex]?
- FLUX.1 Kontext [pro]: Edits an image from plain instructions, from a small fix to a new scene. 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?
- An image costs $0.054. You see the exact price before you press go, and a run that fails costs nothing.
- Is FLUX.1 Kontext [pro] free to try?
- No. There is no free credit: you add credit from $5, and your first top-up has no card fee. The cheapest run is $0.054 (an image), so $5 covers 92 of those. 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-kontext-pro, 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.1 Kontext [pro] and every other model, in the studio, through the API and from your agents.
Your idea, FLUX.1 Kontext [pro].
Every run shows its price before it starts, and one that fails costs nothing.
Make it with FLUX.1 Kontext [pro]For developers
Run FLUX.1 Kontext [pro] from code
- Model ID
- black-forest-labs/flux-kontext-pro
- 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
Imageimages
An image, requiredThe uploaded image to work on, by ID.
Aspect ratioaspect_ratio
21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 9:21
Imagesn
1 to 4. Default: 1
Guidance scale (CFG)settings.guidance_scale
1 to 20. Default: 3.5The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.
Enhance Promptsettings.enhance_prompt
On or off. Default: offWhether to enhance the prompt for better results.
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. A file input takes the ID that POST /v1/files returns for your upload. 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: $LEAP_API_KEY" \ -H "content-type: application/json" \ -H "prefer: wait=60" \ -d '{ "model": "black-forest-labs/flux-kontext-pro", "input": { "prompt": "A paper boat drifting down a rainy street at dusk", "images": [ "file_..." ] } }' # Video often outlasts the wait and answers "queued" or "running".# Put its "id" in GENERATION_ID and read it again until it is done:# curl https://api.tryleap.ai/v1/generations/$GENERATION_ID -H "x-api-key: $LEAP_API_KEY"