Edits and composes images from text instructions and up to ten references with FLUX.3 Klein, with optional bounding-box controls for object placement and transformation.

blackforestlabs/flux-3/klein/edit-image

Edits and composes images from text instructions and up to ten references with FLUX.3 Klein, with optional bounding-box controls for object placement and transformation.

Inference

Commercial use

Schema

LLMs

Playground API Examples

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

blackforestlabs/flux-3/klein/edit-image

Schema

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Input

Prompt*

Edit the poster in the first image. Keep the poster layout, the glass arch, the sphere and all event details exactly as they are. Replace only the large title "FORM & FEELING" with "COLOR & CURIOSITY" in the same expressive high-contrast serif style. Replace only the script subtitle "New ways of seeing" with "A new way to imagine". Recolor the large title in emerald and coral. All remaining printed words stay unchanged and clearly readable. The result is the same polished flat exhibition poster with the two specified text changes, exact spelling and no additional text. Add the <cat>

Type # to reference inputs.

Image URLs*

Hint: Drag and drop files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL.

1 image added

Image Size

Locked: editing one side keeps the current ratio. Tap the lock to free it.

Layout (optional)

Description

Label (optional)

Target placement

Draw, drag or resize the box. Use arrow keys when focused for fine adjustments.

Additional Settings

Customize your input with more control.

Planned per-image pricing by output resolution: 768×768: $0.008, 1K: $0.009, 1.5K: $0.011, 2K: $0.014, and 4K: $0.036. The same schedule is planned for text-to-image generation and image editing.

Result

Idle

What would you like to do next?

Download

{
  "images": [
    {
      "url": "https://v3b.fal.media/files/b/0aae7c44/HKl3FGYGHpMaUPkarsSmT_GMZcdvoA.png",
      "content_type": "image/png",
      "file_name": "HKl3FGYGHpMaUPkarsSmT_GMZcdvoA.png",
      "file_size": null,
      "width": 1024,
      "height": 1360
    }
  ],
  "timings": {
    "prompt_expansion": 1.3404704309996305,
    "inference": 1.2987298789958004,
    "safety_checker": 0.017168827005662024
  },
  "seed": 20261019,
  "has_nsfw_concepts": [
    false
  ],
  "prompt": "Edit the poster in the first image by replacing the large title \"FORM & FEELING\" with \"COLOR & CURIOSITY\" <text_2> in the same expressive high-contrast serif style, recoloring it in emerald and coral. Replace the script subtitle \"New ways of seeing\" with \"A new way to imagine\" <text_4>. Add a green cat <cat> in the background while keeping the layout, glass arch, the sphere, and all other event details identical. [{\"id\": \"cat\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [0, 226, 771, 1000], \"desc\": \"A green cat\"}, {\"id\": \"text_2\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [29, 39, 362, 936], \"desc\": \"The text 'COLOR & CURIOSITY' in a large, expressive high-contrast serif font.\"}, {\"id\": \"text_4\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [363, 69, 477, 940], \"desc\": \"The phrase 'A new way to imagine' in a red script font.\"}]"
}

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Input

Prompt*

Type # to reference inputs.

Image URLs*

Hint: Drag and drop files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL.

1 image added

Image Size

Locked: editing one side keeps the current ratio. Tap the lock to free it.

Layout (optional)

Description

Label (optional)

Target placement

Draw, drag or resize the box. Use arrow keys when focused for fine adjustments.

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Download

{
  "images": [
    {
      "url": "https://v3b.fal.media/files/b/0aae7c44/HKl3FGYGHpMaUPkarsSmT_GMZcdvoA.png",
      "content_type": "image/png",
      "file_name": "HKl3FGYGHpMaUPkarsSmT_GMZcdvoA.png",
      "file_size": null,
      "width": 1024,
      "height": 1360
    }
  ],
  "timings": {
    "prompt_expansion": 1.3404704309996305,
    "inference": 1.2987298789958004,
    "safety_checker": 0.017168827005662024
  },
  "seed": 20261019,
  "has_nsfw_concepts": [
    false
  ],
  "prompt": "Edit the poster in the first image by replacing the large title \"FORM & FEELING\" with \"COLOR & CURIOSITY\" <text_2> in the same expressive high-contrast serif style, recoloring it in emerald and coral. Replace the script subtitle \"New ways of seeing\" with \"A new way to imagine\" <text_4>. Add a green cat <cat> in the background while keeping the layout, glass arch, the sphere, and all other event details identical. [{\"id\": \"cat\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [0, 226, 771, 1000], \"desc\": \"A green cat\"}, {\"id\": \"text_2\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [29, 39, 362, 936], \"desc\": \"The text 'COLOR & CURIOSITY' in a large, expressive high-contrast serif font.\"}, {\"id\": \"text_4\", \"from\": \"target\", \"src_bbox\": null, \"tgt_bbox\": [363, 69, 477, 940], \"desc\": \"The phrase 'A new way to imagine' in a red script font.\"}]"
}