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FLUX Kontext Dev Image Editor

Edit images using natural language instructions with FLUX Kontext Dev model from Black Forest Labs

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Inputs

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Execution Steps

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Overview

FLUX Kontext Dev Image Editor edits one source image from natural-language instructions and can return one to four edited images. Use it for fast product, campaign, social, or brand-asset revisions when you want prompt-based edits with resolution, aspect, acceleration, prompt-enhancement, guidance, format, safety, and seed controls.

Use cases

  • Edit a product or campaign image from a plain-language change request.
  • Generate several edited options from one source image and prompt.
  • Try different aspect or resolution modes while preserving the same edit direction.
  • Use prompt enhancement when a short instruction needs more detail.

Input tips

  • Provide one public image_url that can be fetched without login.
  • Write a prompt that says what to change and what should stay fixed.
  • Choose num_images from 1-4 when you want multiple edit options.
  • Use resolution_mode to match the input, select auto, or choose an aspect ratio.
  • Set output_format to png or jpeg based on the final handoff need.
  • Adjust acceleration, inference steps, guidance scale, prompt enhancement, safety checker, or seed only when needed.

Expected output

The AI Tool returns one or more edited images with downloadable URLs and optional content type, file name, file size, width, and height, plus the prompt used, seed, timing metadata, safety flags, and cost metadata. The shared FLUX output view renders a single image or gallery and shows prompt, seed, image count, timings, safety status when flagged, and the FLUX Kontext Dev model label.

Caveats

  • The image URL must be public and reachable.
  • Prompt wording strongly affects what changes and what stays fixed.
  • Resolution or aspect changes can alter framing, composition, or fine details.
  • Generated text, logos, product details, faces, and image edges should be reviewed before use.
  • Safety filtering or safety flags may block, alter, or mark some outputs.

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