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FLUX.1 Kontext [pro]

FLUX.1 Kontext [pro] takes text and a reference image as input, enabling targeted local edits as well as complex transformations of entire scenes.

By Black Forest Labs

Pricing: $0.04 per image

Overview

FLUX.1 Kontext [pro] edits images using both text and a reference image, supporting precise local edits as well as full-scene transformations. It keeps subjects consistent while changing backgrounds, lighting, color, and style.

Key capabilities

  • $0.04 per image, about 25 runs per $1, with simple fixed per-call pricing.
  • Multi-region failover. Runflow runs optimized inference across multiple regions, routing around outages automatically.
  • Targeted local edits that change one element while preserving the rest of the image.
  • Whole-scene transformations including background swaps, relighting, and restyling.
  • Strong subject consistency, so faces and key objects stay recognizable across edits.

Technical specifications

| Spec | Detail |

| --- | --- |

| Architecture | FLUX.1 Kontext (flow-based generative model) |

| Task | Image-to-image, text-guided editing |

| Inputs | Source image plus text prompt |

| Output format | PNG or JPEG |

| Aspect ratio | Configurable |

Examples

  • Replace the plain studio background behind the smiling young woman with curly dark hair with a warm, softly blurred autumn park at golden hour, keeping her face, hair, and lighting natural and consistent.
  • Move the tabby-and-white cat from the snow onto a sunlit spring meadow with soft green grass and tiny wildflowers, matching the daylight and keeping the cat's pose and fur detail unchanged.
  • Change the pink flower bloom to a deep velvety blue with subtle dew droplets on the petals, keeping the soft green background and the close-up focus intact.
  • Transform the lush green summer forest around the winding river into vivid autumn foliage with orange and red leaves, keeping the river's path and reflections realistic.

Frequently asked questions

What is FLUX.1 Kontext [pro]?
FLUX.1 Kontext [pro] is an image-to-image model from Black Forest Labs that edits a source image based on a text prompt. It can make precise local edits or transform an entire scene while keeping the main subject consistent.
How much does FLUX.1 Kontext [pro] cost on Runflow?
It costs $0.04 per generated image, which is about 25 images per $1. Pricing is simple and fixed per call, so you can estimate costs before you run.
How long does FLUX.1 Kontext [pro] take to run?
A single edit typically completes in a few seconds, depending on resolution and the number of images requested. Multi-region routing helps keep latency consistent.
Can I use FLUX.1 Kontext [pro] commercially?
Yes. Output from this model can be used in commercial projects under the model's commercial license. Review the license terms for your specific use case.
Do I need to manage GPUs or infrastructure?
No. Runflow handles all inference and scaling with multi-region failover. You call the API and get results, with no AI team required.
How do I get started with FLUX.1 Kontext [pro] on Runflow?
Sign up, grab your API key, then send a request with an image URL and a prompt describing the edit. You can also set aspect ratio, output format, and the number of images.

Related models

  • Nano Banana Edit, Google's original image generation and editing model for natural-language photo edits. Recolor, relight, swap backgrounds, add or remove elements, and restyle images using one or more source photos and a plain-text prompt.
  • FLUX.1 [dev] Edit, Image-to-image edits with FLUX.1 [dev]. Pass a source image plus a prompt and a transformation strength to redirect the composition while preserving subject identity.
  • Multi Angles, Re-render the same subject from a different camera angle. Pick a horizontal view, a vertical angle, and a shot distance: the model rotates the camera around the subject and re-renders the scene from that pose.
  • FLUX.2 [klein] 4B Edit, Fast image-edit endpoint backed by FLUX.2 [klein] 4B. Pass a base64 source image with the prompt for low-latency edits.

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