FLUX.1-dev Inpainting
flux-dev-inpaintingFLUX.1-dev inpainting wrapper that fills masked parts of an image from a prompt. Useful when you want FLUX-quality fills with a simple image plus mask plus prompt interface and adjustable mask strength.
- Price
- ≈ $0.090/run
- Input → output
- Text + Image → Image
- Developer
- Community
- Updated
- September 23, 2026
Playground
Try FLUX.1-dev Inpainting
Input & output
This run
about $0.09 · 9 credits
$0.27 (27 credits) are reserved at the start; the actual GPU time is billed.
For accounts without a purchase: runs above 2 credits need a top-up.
New here?
10 free credits ($0.10) when you sign up with Google
Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.
Examples
Open full size
InputPrompt
small cute cat sat on a park bench
Open full size
InputPrompt
Minion sat up on a park bench
Open full size
InputPrompt
small cute cat sat on a park bench
About FLUX.1-dev Inpainting
FLUX.1-dev Inpainting is a model by Community in the Image generation category. On Railwail, FLUX.1-dev Inpainting costs ≈ $0.090 per run.
Pricing
| Typical run (≈ 54 s on A100 (80GB)) | $0.090 per run |
|---|---|
| GPU time (A100 (80GB)) | $0.00168 per GPU second |
- Billed by the GPU time the run actually takes. When the run starts, 3× the typical price is reserved from your balance and settled afterwards.
- 1 credit = $0.01
Cost calculator
Price calculator
Typical according to the provider: about 53.6 s
Total
$9.00
900 credits
Per run
$0.09 · 9 credits
Billed by the actual GPU time; this is an estimate.
API
No verified API example
The public API passes a different input format than this model needs. Use the playground above.
Specifications
- Model ID
flux-dev-inpainting- Developer
- Community
- Category
- Image generation
- Input
- Text, Image
- Output
- Image
- Billing
- By usage (tokens or GPU time)
- Catalog entry updated
- September 23, 2026
Input parameters
Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.
maskrequiredMask of the region to fill
Type: TextDefault: –Allowed values: –imagerequiredSource image
Type: TextDefault: –Allowed values: –promptrequiredWhat to generate in the masked area
Type: TextDefault: –Allowed values: up to 2,000 charactersstrengthType: NumberDefault:1Allowed values: 0 to 1num_inference_stepsType: IntegerDefault:30Allowed values: 1 to 50
Tags
- flux
- image-edit
- inpainting
- open-weights
- edit
Use cases
Frequently asked questions
What is FLUX.1-dev Inpainting?
FLUX.1-dev Inpainting is a model by Community in the Image generation category.
How much does FLUX.1-dev Inpainting cost on Railwail?
On Railwail, FLUX.1-dev Inpainting costs ≈ $0.090 per run. You are charged for what each request actually uses. Usage is paid from prepaid credits; 1 credit equals $0.01.
Which settings does FLUX.1-dev Inpainting support?
According to its input schema, FLUX.1-dev Inpainting knows these parameters: mask, image, prompt (up to 2,000 characters), strength (0 to 1), and num_inference_steps (1 to 50).
How fast is FLUX.1-dev Inpainting?
There are not enough measured runs of FLUX.1-dev Inpainting on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is FLUX.1-dev Inpainting better than FLUX 1.1 Pro?
That depends on the task. FLUX.1-dev Inpainting (Community) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.
Compare FLUX.1-dev Inpainting and FLUX 1.1 ProCan FLUX.1-dev Inpainting use an image as input?
Yes. Send the image in the image parameter.
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All models through one API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = $0.01.