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Lumina Image 2

Integrate

Model id lumina-image/v2
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/lumina-image/v2?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

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

This request: $0.075 75 API credits Run it on this page

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Open model Text to Image #diffusion#typography#style

Text-to-image model with typography focus, negative prompt, CFG controls and six size presets

Open model · 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

Prompt that guides image generation.

image_size default landscape_4_3

Dimensions of the generated image.

num_images default 1

Image count requested for generation.

Advanced negative_prompt · system_prompt · output_format · guidance_scale · num_inference_steps · cfg_trunc_ratio · seed · cfg_normalization · enable_safety_checker
default

Negative prompt specifying image details to exclude, including colors, objects, scenery, or finer features. Examples include a moustache, blur, or low resolution.

default You are an assistant ...

System prompt supplied to the model.

output_format default jpeg

File format for the resulting image.

default 4

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

default 30

Count of inference steps to run.

default 1

Normalization-based guidance scaling coverage, expressed as a proportion of the timestep interval.

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

POST /run/lumina-image/v2?wait=20 quote → $0.075
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/lumina-image/v2?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/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 Lumina Image 2

Generates images from a text prompt using a 2 billion parameter diffusion transformer. Supports a `negative_prompt`, a `system_prompt`, `guidance_scale` from 0 to 20 and `num_inference_steps` from 1 to 50. Six `image_size` presets cover square, portrait and landscape shapes. Up to 4 images per call, output as jpeg or png, and a `seed` makes results repeatable.

Parameters

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

NameType DefaultAllowed Description
promptrequired
Typestring
Prompt that guides image generation.
image_sizeoptional
Typeobject
Defaultlandscape_4_3
square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
Dimensions of the generated image.
negative_promptoptional
Typestring
Default
Negative prompt specifying image details to exclude, including colors, objects, scenery, or finer features. Examples include a moustache, blur, or low resolution.
system_promptoptional
Typestring
DefaultYou are an assistant designed to generate superior images with the superior degree of image-text alignment based on textual prompts or user prompts.
System prompt supplied to the model.
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
Default4
0 – 20
Prompt-adherence strength for image selection, expressed as CFG (Classifier Free Guidance).
num_inference_stepsoptional
Typeinteger
Default30
1 – 50
Count of inference steps to run.
cfg_normalizationoptional
Typeboolean
Defaulttrue
Controls whether normalization-based guidance scaling is applied.
cfg_trunc_ratiooptional
Typenumber
Default1
0 – 1
Normalization-based guidance scaling coverage, expressed as a proportion of the timestep interval.
num_imagesoptional num_outputs
Typeinteger
Default1
1 – 4
Image count requested for generation.
enable_safety_checkeroptional
Typeboolean
Defaulttrue
Safety-checking switch whose off setting requires account authorization. Without that authorization, every request is checked regardless of the setting; true enables the checker.
output_formatoptional
Typeenum
Defaultjpeg
jpegpng
File format for the resulting image.
required Canonical name, also accepted

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "lumina-image/v2",
  "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": 75,
    "usd": "0.075",
    "charged": 75,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "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://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/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 by the model.
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.

For AI agents: this page as Markdown is at https://doitong.com/developers/models/lumina-image/v2.md. All models and guides: https://doitong.com/developers/llms.txt