Skip to content

FLUX.1 Kontext [pro]

Integrate

Model id flux-pro/kontext
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://vit.doitong.com/api/v1/run/flux-pro/kontext?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Restore and colorize this image. Remove any scratches or imperfections.",
    "image": "https://content.doitong.com/dev-api/2026/10/21/req_nwh4ychmr6vyovvas0hhcxcx/0-dNCNdO5QkD7jDyRi24Z8s_L3lpa0jm.png"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://vit.doitong.com/api/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

This request: $0.04 40 API credits Run it on this page

Get API key
Black Forest Labs Image Editing #editing#local-edits#consistency

Precise local edits from one reference image, such as changing colors, adding objects or rewriting text.

Examples

Input
Output · ~11 s
Restore and colorize this image. Remove any scratches or imperfections.

PromptRestore and colorize this image. Remove any scratches or imperfections.

$0.04 · 40 API credits

Prompt from @MrDavids1 on X

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required

Prompt that guides image generation.

•required image_url
Drop a file, or

Image used to prompt the omni model.

aspect_ratio

Aspect ratio for the resulting image.

num_images default 1

Image count requested for generation.

Advanced output_format · safety_tolerance · guidance_scale · seed · enhance_prompt
output_format default jpeg

File format for the resulting image.

safety_tolerance default 2

Generated-image safety setting, ranging in tolerance from maximum permissiveness at 5 to maximum strictness at 1.

default 3.5

Prompt-adherence strength for image selection, expressed as CFG (Classifier Free Guidance).

Seed for reproducible images: an identical prompt and seed produce an identical image when the model version is unchanged.

POST /run/flux-pro/kontext?wait=20 quote → $0.04
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://vit.doitong.com/api/v1/run/flux-pro/kontext?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Restore and colorize this image. Remove any scratches or imperfections.",
    "image": "https://content.doitong.com/dev-api/2026/10/21/req_nwh4ychmr6vyovvas0hhcxcx/0-dNCNdO5QkD7jDyRi24Z8s_L3lpa0jm.png"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://vit.doitong.com/api/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About FLUX.1 Kontext [pro]

FLUX.1 Kontext edits a single input image from a short instruction while leaving the rest of the picture untouched, which makes it reliable for iterative retouching, product variations and replacing text on signs. Optionally force a new aspect ratio, enhance the prompt or fix a seed. Up to four results per request.

Parameters

Send either the canonical name or the native name, not both. Canonical names

NameType DefaultAllowed Description
promptrequired
Typestring
Prompt that guides image generation.
seedoptional
Typeinteger | null
Seed for reproducible images: an identical prompt and seed produce an identical image when the model version is unchanged.
guidance_scaleoptional
Typenumber
Default3.5
1 – 20
Prompt-adherence strength for image selection, expressed as CFG (Classifier Free Guidance).
num_imagesoptional num_outputs
Typeinteger
Default1
1 – 4
Image count requested for generation.
output_formatoptional
Typeenum
Defaultjpeg
jpegpng
File format for the resulting image.
safety_toleranceoptional
Typeenum
Default2
123456
Generated-image safety setting, ranging in tolerance from maximum permissiveness at 5 to maximum strictness at 1.
enhance_promptoptional
Typeboolean
Defaultfalse
Controls prompt enhancement to improve results.
aspect_ratiooptional
Typeenum
21:916:94:33:21:12:33:49:169:21
Aspect ratio for the resulting image.
image_urlrequired image
Typeurl · image
Image used to prompt the omni model.
required Canonical name, also accepted

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "flux-pro/kontext",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 40,
    "usd": "0.04",
    "charged": 40,
    "refunded": 0
  },
  "input": {
    "prompt": "Change the sneaker color to bright red, keep everything else the same",
    "image": "https://content.doitong.com/images/showcase/v3/gen_sneaker_ad.jpg"
  },
  "output": {
    "images": [
      {
        "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
        "content_type": "image/jpeg",
        "file_name": "0-output.jpeg",
        "file_size": 1843200,
        "width": 1024,
        "height": 768
      }
    ],
    "timings": {},
    "seed": 42,
    "has_nsfw_concepts": [
      false
    ],
    "prompt": "string"
  },
  "outputs": [
    {
      "type": "image",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://vit.doitong.com/api/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://vit.doitong.com/api/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
images
array of object {url, content_type, file_name, file_size, width, height}File information for the generated images.
timings
object
seed
integerImage-generation seed, including the randomly chosen value if the input omitted a seed; otherwise, it repeats the supplied value.
has_nsfw_concepts
array of booleanIndicates whether NSFW concepts appear in the generated images.
prompt
stringPrompt used during image generation.

More models: Image Editing

For AI agents: this page as Markdown is at https://doitong.com/en-US/developers/models/flux-pro/kontext.md. All models and guides: https://doitong.com/developers/llms.txt