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Bria Expand Image

Integrate

Model id bria/expand
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/bria/expand?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",
    "canvas_size": [
      1200,
      674
    ]
  }'

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

This request: $0.04 40 API credits · ≈ ₽4.22 Run it on this page

Get API key
Bria AI · 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.

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

default

Optional text guiding image expansion. Prompts currently support only English, with no special characters.

•required image_url
Drop a file, or

Input image URL.

aspect_ratio

Final-image aspect ratio that, when supplied, overrides both `original_image_size` and `original_image_location`.

•required

Expanded-image dimensions subject to an area limit strictly below 5000 × 5000 pixels.

Advanced negative_prompt · seed · original_image_size · original_image_location
default

Negative text prompt for image generation.

Optional seed for reproducing an expansion: supply the seed returned with a previous result to recreate it. Leaving it out allows random generation when repeatability is unnecessary.

Target dimensions of the source image within the full canvas; ignored when aspect_ratio is supplied. For optimal results, the input's foreground or main subject should occupy more than 15% of the canvas area.

Upper-left coordinates positioning the original image on the full canvas, ignored whenever `aspect_ratio` is supplied. Cropping results if the position extends outside the canvas, which is permitted.

POST /run/bria/expand?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://api.doitong.ru/v1/run/bria/expand?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",
    "canvas_size": [
      1200,
      674
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/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 Bria Expand Image

Extends the image at `image_url` onto a larger canvas defined by `canvas_size`, which should stay under 5000x5000 pixels of area. Alternatively use `aspect_ratio` (1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9), which takes priority over manual size and location. You can place the original with `original_image_size` and `original_image_location`, and guide the fill with an English `prompt`.

Parameters

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

NameType DefaultAllowed Description
image_urlrequired image
Typeurl · image
Input image URL.
canvas_sizerequired
Typeinteger[]
Expanded-image dimensions subject to an area limit strictly below 5000 × 5000 pixels.
aspect_ratiooptional
Typeenum
1:12:33:23:44:34:55:49:1616:9
Final-image aspect ratio that, when supplied, overrides both `original_image_size` and `original_image_location`.
original_image_sizeoptional
Typeinteger[]
Target dimensions of the source image within the full canvas; ignored when aspect_ratio is supplied. For optimal results, the input's foreground or main subject should occupy more than 15% of the canvas area.
original_image_locationoptional
Typeinteger[]
Upper-left coordinates positioning the original image on the full canvas, ignored whenever `aspect_ratio` is supplied. Cropping results if the position extends outside the canvas, which is permitted.
promptoptional
Typestring
Default
Optional text guiding image expansion. Prompts currently support only English, with no special characters.
seedoptional
Typeinteger | null
0 – 2,147,483,647
Optional seed for reproducing an expansion: supply the seed returned with a previous result to recreate it. Leaving it out allows random generation when repeatability is unnecessary.
negative_promptoptional
Typestring
Default
Negative text prompt for image generation.
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": "bria/expand",
  "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": {
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "canvas_size": [
      1200,
      674
    ]
  },
  "output": {
    "image": {
      "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
    },
    "seed": 42
  },
  "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://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/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
image
object {url, content_type, file_name, file_size, width, height}Image produced by generation.
seed
integerSeed applied during generation.

More models: Image Editing

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