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FLUX.2 Klein 9B Edit

wavespeed-ai/flux-2-klein-9b/edit

FLUX.2 [klein] 9B Edit is a high-quality image editing model with 9B parameters, offering precise modifications using natural language instructions. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Input

Hint: You can drag and drop a file or click to upload

preview

Hint: You can drag and drop a file or click to upload

preview
If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Idle

Put the person in image1 into image2.

Your request will cost $0.016 per run.

For $1 you can run this model approximately 62 times.

One more thing::

ExamplesView all

Put the person in image1 into image2.
Put this character on the football field
Change image1 to the oil painting style
Change to a strawberry
Change to a dog

README

FLUX.2 Klein 9B Edit

FLUX.2 Klein 9B Edit is a powerful image editing model with 9B parameters. Upload images and describe your edits in natural language — the model delivers higher quality transformations and better prompt understanding than the 4B variant.

Why Choose This?

  • Enhanced editing quality 9B parameter model delivers richer detail and better prompt interpretation than the 4B variant.

  • Text-guided editing Describe edits in natural language — transform styles, modify content, combine elements, and more.

  • Multi-image input Upload multiple reference images and combine elements across them (e.g., "Put the person in image1 into image2").

  • Flexible output sizing Optionally set output size, or leave empty to match input image dimensions.

  • Prompt Enhancer Built-in tool to automatically improve your prompts for better results.

Parameters

ParameterRequiredDescription
promptYesText description of the desired edit
imagesYesSource images to edit (can add multiple)
sizeNoOutput dimensions (empty = same as input image)
seedNoRandom seed for reproducibility (-1 for random)

How to Use

  1. Write your prompt — describe the edit you want (e.g., "Put the person in image1 into image2", "Change to watercolor style").
  2. Upload images — add source images using "+ Add Item" button.
  3. Set size (optional) — specify output dimensions or leave empty to match input.
  4. Set seed — use -1 for random, or specify a number for reproducibility.
  5. Run — submit and download the edited image.

Pricing

ItemCost
Per image$0.016

Simple flat-rate pricing regardless of image size.

Best Use Cases

  • Image Compositing — Combine elements from multiple images seamlessly.
  • Style Transfer — Transform images to different artistic styles with high fidelity.
  • Professional Editing — When 4B quality isn't enough for production work.
  • Content Transformation — Change moods, lighting, or visual themes with precision.
  • Complex Edits — Multi-image operations that require better understanding.

Pro Tips

  • Be specific in your prompt — clearly describe what should change.
  • Reference images by number in prompts (e.g., "Put the person in image1 into image2").
  • Leave size empty to preserve original image dimensions.
  • Use the same seed to compare different prompts on the same images.

Notes

  • If size is not specified, output matches input image dimensions.
  • 9B model offers better detail than 4B at slightly higher cost.
  • Need LoRA support? Try FLUX.2 Klein 9B Edit LoRA.

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