images-generate

Generate images with a custom Ideogram 3.0 model

Generate one or more images with a custom Ideogram 3.0 model that the authenticated user or organization can access. The model registry controls the model's supported rendering speeds and whether it removes backgrounds automatically.

By default the request blocks until the images are ready and returns them in data. Set async to true to return immediately after the request is accepted, then poll for completion and results with GET /v1/generations/{generation_id} using the returned generation_id.

Supplying a webhook_url makes the request asynchronous whatever async says: the response returns as soon as the request is accepted, and the finished result is POSTed to that URL.

post/v2/images/generate/ideogram-v3-custom-model

Request body

promptstring required

The prompt to generate images from.

custom_model_uristring required

The custom model URI returned by the custom-model API, in the form model/<model_name>/version/<version_name>. The authenticated user or organization must have access to the model.

negative_promptstring

Description of what to exclude from the images. Descriptions in the prompt take precedence over descriptions in the negative prompt.

seedinteger

Random seed. Set for reproducible generation.

resolution'512x1536' | '576x1408' | '576x1472' | '576x1536' | '640x1344' | '640x1408' | '640x1472' | '640x1536' | '704x1152' | '704x1216' | '704x1280' | '704x1344' | '704x1408' | '704x1472' | '736x1312' | '768x1088' | '768x1216' | '768x1280' | '768x1344' | '800x1280' | '832x960' | '832x1024' | '832x1088' | '832x1152' | '832x1216' | '832x1248' | '864x1152' | '896x960' | '896x1024' | '896x1088' | '896x1120' | '896x1152' | '960x832' | '960x896' | '960x1024' | '960x1088' | '1024x832' | '1024x896' | '1024x960' | '1024x1024' | '1088x768' | '1088x832' | '1088x896' | '1088x960' | '1120x896' | '1152x704' | '1152x832' | '1152x864' | '1152x896' | '1216x704' | '1216x768' | '1216x832' | '1248x832' | '1280x704' | '1280x768' | '1280x800' | '1312x736' | '1344x640' | '1344x704' | '1344x768' | '1408x576' | '1408x640' | '1408x704' | '1472x576' | '1472x640' | '1472x704' | '1536x512' | '1536x576' | '1536x640'

The resolutions supported for Ideogram 3.0.

aspect_ratio'1x3' | '3x1' | '1x2' | '2x1' | '9x16' | '16x9' | '10x16' | '16x10' | '2x3' | '3x2' | '3x4' | '4x3' | '4x5' | '5x4' | '1x1'

The aspect ratio to use for image generation, which determines the image's resolution. Cannot be used in conjunction with resolution. Defaults to 1x1.

rendering_speed'TURBO' | 'DEFAULT' | 'QUALITY'

The rendering speed to use. When omitted, the server chooses a speed supported by the selected custom model.

magic_prompt'AUTO' | 'ON' | 'OFF'

Determine if MagicPrompt should be used in generating the request or not.

num_imagesinteger

The number of images to generate.

style_codesStyleCode[]

A list of 8 character hexadecimal codes representing the style of the image. Cannot be used in conjunction with style_reference_images or style_type.

A predefined style preset that applies a specific artistic style to the generated image.

style_reference_imagesstring[]

Images to use as style references (max 10, max size 25MB per image), as raw bytes; only JPEG, PNG, and WEBP formats are supported. Multipart requests only. Cannot be combined with style_reference_asset_identifiers.

enable_copyright_detectionboolean nullable

Optional. Opt this request into post-generation copyright detection. Adds detection latency; flagged images come back with is_image_safe: false.

asyncboolean

When false (the default), the request blocks until the images are ready and returns them in data. When true, the request returns as soon as it is accepted; poll for completion and results with GET /v1/generations/{generation_id} using the returned generation_id.

webhook_urlstring uri

HTTPS URL that Ideogram delivers the generated result to. Ideogram sends a JSON POST to this URL once all images for the request have finished generating. The body mirrors the synchronous generate response: request_id, created, and a data array containing every generated image (url, prompt, resolution, seed, is_image_safe). Each delivery is signed with Ed25519 and verifiable against the public keys at https://api.ideogram.ai/v1/.well-known/jwks.json. Must be HTTPS; private and loopback hosts and the cloud metadata service are rejected.

privateboolean nullable

When true or omitted, the output is kept private to your account. Set to false to publish the output to the public feed. Enterprise accounts always generate privately.

target_collection_idstring

A collection you can write to, by its URL-safe base64 collection id. The output images are added to it when the request completes.

Example request

{
  "custom_model_uri": "model/my-custom-model/version/1",
  "seed": 12345,
  "resolution": "1280x800",
  "magic_prompt": "ON",
  "color_palette": {
    "name": "PASTEL"
  },
  "style_codes": [
    "AAFF5733",
    "0133FF57",
    "DE3357FF"
  ],
  "style_preset": "BRIGHT_ART",
  "style_reference_asset_identifiers": [
    {
      "asset_type": "RESPONSE",
      "asset_id": "7uS_VESkRI6O3-sVgHQp_A"
    }
  ],
  "webhook_url": "https://api.example.com/webhooks/ideogram"
}

Response

The generated images (synchronous requests), or an acknowledgement to poll with GET /v1/generations/{generation_id} (async requests).

generation_idstring required

URL-safe base64 ID of the accepted generation. Accepted by the GET /v1/generations/{generation_id} polling endpoint.

seedinteger required