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BFL modelsimage generation api

bfl/flux-2/flash/edit

Flux 2 Flash Edit is BFL's intelligent image editing model. Transform, retouch, and reimagine existing images using text prompts - from background replacement to artistic style conversion.

Input
The prompt to edit the image.

PNG, JPEG, WebP, or GIF · 20 MiB maximum each

The URLs of the images for editing. A maximum of 4 images are allowed, if more are provided, only the first 4 will be used.
020
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. Range: 0 to 20.
The format of the generated image. Allowed values: jpeg, png.
The aspect ratio of the generated image. Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16.
The seed to use for the generation. If not provided, a random seed will be used.
Idle

Example output — click Run to generate your own

API README

Flux 2 Flash Edit

Flux 2 Flash Edit is the speed-focused FLUX.2 Flash editing route, designed for quick visual response without reducing the task to a low-quality placeholder. It interprets a source image and written change together, preserving useful context while rapidly reconstructing the requested result.

Use it when turnaround and iteration volume matter: live creative tools, A/B variants, social assets, thumbnails, or early campaign exploration. State the requested edit and preservation constraints plainly so speed does not come at the cost of uncontrolled change. Move to a quality-oriented tier only when final-detail demands exceed the Flash result.

Highlights

  • Rapid contextual editing. Applies source-aware visual changes through the low-latency Flash path.
  • Unrequested-detail preservation. Retains important scene and subject context outside the requested revision.
  • Fast semantic reconstruction. Changes objects, backgrounds, styling, or presentation without a slow manual pipeline.
  • High-volume variation. Supports repeated editing experiments and production variants where responsiveness matters.

Pricing

ConfigurationBilling unitPrice
Base generationPer request$0.0012

When to Use

✅ Good fit❌ Consider alternatives
The project needs this exact generation or editing routeThe intended task belongs to video, audio, or 3D media
Available references match every required local fieldRequired source assets or rights are unavailable
The brief can specify composition, color, and finishOutput must be deterministic at pixel level
Supported dimensions and formats fit final placementDelivery requires unsupported canvas specifications
An asynchronous generated image fits productionA live frame-synchronous response is mandatory

Prompt Guide

Write a complete visual brief: identify the subject and references, define composition and viewpoint, describe lighting, palette, materials, typography, and finish, then list exact preservation constraints. FLUX.2 Klein does not rely on prompt upsampling, so use clear descriptive sentences rather than sparse keywords.

{
  "prompt": "A photorealistic editorial composition with precise subject placement, controlled lighting, exact colors, and clean typography",
  "seed": 1,
  "images": [
    "https://example.com/reference.jpg"
  ],
  "aspect_ratio": "21:9"
}

Technical Specs

SpecValue
Model IDbfl/flux-2/flash/edit
Input fieldsseed (integer)<br>images (array)<br>prompt (string)<br>aspect_ratio (string; 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16)<br>output_format (string; jpeg, png)<br>guidance_scale (number; 0–20)
Required inputprompt
Output fieldsurl, content_type
ExecutionAsynchronous job

Related Models

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  • bfl/flux-2-lora-gallery/multiple-angles

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