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FLUX 2 Pro Outpaint

Integrate

Model id flux-2-pro/outpaint
# 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-2-pro/outpaint?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# 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: ≈$0.40 400 API credits Run it on this page

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Black Forest Labs · Image

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

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

•required image_url
Drop a file, or

URL of the source image for outpainting expansion.

Advanced mode · output_format · expand_top · expand_bottom · expand_left · expand_right · auto_crop · enable_safety_checker
mode default high

Outpainting quality and speed selection: `fast` extends most scenes well and runs significantly faster, though fidelity can suffer. For the highest fidelity, use `high`, the default.

output_format default jpeg

File format for the resulting image.

default 0

Number of pixels added above the image.

default 0

Number of pixels added below the image.

default 0

Number of pixels added along the image's left edge.

default 0

Number of pixels added along the image's right edge.

POST /run/flux-2-pro/outpaint?wait=20 quote → $0.40
# 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-2-pro/outpaint?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# 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 2 Pro Outpaint

Expands a source image (`image_url`) by filling in new content outside the edges. Use `expand_top`, `expand_bottom`, `expand_left` and `expand_right`, each 0 to 2048 pixels. `mode` is `high` for best fidelity or `fast` for quicker results, and `auto_crop` handles references that do not fit the new canvas. Output is jpeg or png.

Parameters

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

NameType DefaultAllowed Description
image_urlrequired image
Typeurl · image
URL of the source image for outpainting expansion.
expand_topoptional
Typeinteger
Default0
0 – 2,048
Number of pixels added above the image.
expand_bottomoptional
Typeinteger
Default0
0 – 2,048
Number of pixels added below the image.
expand_leftoptional
Typeinteger
Default0
0 – 2,048
Number of pixels added along the image's left edge.
expand_rightoptional
Typeinteger
Default0
0 – 2,048
Number of pixels added along the image's right edge.
auto_cropoptional
Typeboolean
Defaultfalse
Automatic cropping option for portions of the reference image that fall outside the expanded canvas.
modeoptional
Typeenum
Defaulthigh
highfast
Outpainting quality and speed selection: `fast` extends most scenes well and runs significantly faster, though fidelity can suffer. For the highest fidelity, use `high`, the default.
enable_safety_checkeroptional
Typeboolean
Defaulttrue
Safety-checking switch whose off setting is honored only for authorized accounts. All requests without that authorization undergo safety checks.
output_formatoptional
Typeenum
Defaultjpeg
jpegpng
File format for the resulting image.
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-2-pro/outpaint",
  "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": 400,
    "usd": "0.40",
    "charged": 400,
    "refunded": 0
  },
  "input": {
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.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
      }
    ]
  },
  "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}Images produced through outpainting.

More models: Image Editing

For AI agents: this page as Markdown is at https://doitong.com/developers/models/flux-2-pro/outpaint.md. All models and guides: https://doitong.com/developers/llms.txt