---

name: flux-2-klein-4b-base-edit description: "Flux 2 | Klein | 4B | Base | Edit. Edit images with a lightweight 4B parameter Flux model. Triggers: image editing, flux edit, quick edit, ai modify image" allowed-tools: Bash(curl *), WebFetch

Flux 2 | Klein | 4B | Base | Edit

Edit images using the lightweight Flux 2 Klein 4B Base model. A faster alternative to the 9B variant with fewer inference steps required, ideal for quick image modifications.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-klein-4b-base-edit",
    "version": "0.0.1",
    "input": {
      "prompt": "Change the wall color to a warm terracotta",
      "image_urls": ["https://example.com/room.jpg"],
      "image_size": "landscape_4_3",
      "num_inference_steps": 4,
      "output_format": "png"
    }
  }'

Parameters

Parameter	Type	Default	Description
enable_safety_checker	boolean	true	If set to true, the safety checker will be enabled.
image_size	string	landscape_4_3	The size of the generated image. Options: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9
image_urls	array	-	The URLs of the images for editing. A maximum of 4 images are allowed.
num_images	integer	1	The number of images to generate.
num_inference_steps	integer	4	The number of inference steps to perform.
output_format	string	png	The format of the generated image. Options: jpeg, png, webp
prompt	string	-	The prompt to edit the image.
seed	integer	-	The seed to use for the generation. If not provided, a random seed will be used.

Examples

Quick image edit:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-klein-4b-base-edit",
    "version": "0.0.1",
    "input": {
      "prompt": "Add sunglasses to the person",
      "image_urls": ["https://example.com/selfie.jpg"]
    }
  }'

Edit with specific output settings:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-klein-4b-base-edit",
    "version": "0.0.1",
    "input": {
      "prompt": "Turn the daytime scene into a snowy winter landscape",
      "image_urls": ["https://example.com/park.jpg"],
      "image_size": "landscape_16_9",
      "num_inference_steps": 6,
      "output_format": "jpeg",
      "seed": 777
    }
  }'

Related Models

• Flux 2 | Klein | 4B | Base | Text to Image - Generate images from text with the 4B model
• Flux 2 | Klein | 9B | Base | Edit - Higher quality 9B variant for editing
• Flux 2 | Klein | 4B | Edit - Enhanced 4B edit variant with acceleration support

Documentation

• each::labs Docs
• API Reference