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PuLID Flux

Integrate

Model id flux-pulid
# 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-pulid?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",
    "reference_image_url": "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: $0.034 34 API credits Run it on this page

Get API key
Black Forest Labs Image Editing Reference inputs #personalization#style-transfer

Personalized generation that uses a reference face image plus a prompt, with adjustable identity weight

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

Prompt that guides image generation.

•required
Drop a file, or

URL pointing to the image for inpainting.

image_size default landscape_4_3

Dimensions of the generated image.

Advanced negative_prompt · max_sequence_length · num_inference_steps · guidance_scale · start_step · true_cfg · id_weight · seed · enable_safety_checker
default

Prompt that guides image generation.

max_sequence_length default 128

Upper limit on the model's sequence length.

default 20

Count of inference steps to run.

default 4

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

default 0

Step number at which CFG begins.

default 1

Weight applied to the CFG loss.

default 1

Weight applied to the ID loss.

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

POST /run/flux-pulid?wait=20 quote → $0.034
# 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-pulid?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",
    "reference_image_url": "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 PuLID Flux

Creates new images from a text prompt while following a person's likeness taken from `reference_image_url`. The `id_weight` (0 to 1) sets how strongly the identity is applied. Other controls include `num_inference_steps` (1 to 50), `guidance_scale` (0 to 20), `negative_prompt`, six preset `image_size` values and `max_sequence_length` of 128, 256 or 512.

Parameters

NameType DefaultAllowed Description
promptrequired
Typestring
Prompt that guides image generation.
reference_image_urlrequired
Typeurl · image
URL pointing to the image for inpainting.
image_sizeoptional
Typeobject
Defaultlandscape_4_3
square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
Dimensions of the generated image.
num_inference_stepsoptional
Typeinteger
Default20
1 – 50
Count of inference steps to run.
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).
negative_promptoptional
Typestring
Default
Prompt that guides image generation.
start_stepoptional
Typeinteger
Default0
0 – 50
Step number at which CFG begins.
true_cfgoptional
Typenumber
Default1
1 – 10
Weight applied to the CFG loss.
id_weightoptional
Typenumber
Default1
0 – 1
Weight applied to the ID loss.
enable_safety_checkeroptional
Typeboolean
Defaulttrue
Safety checking, which returns black images in place of any images flagged unsafe. A value of true enables checking; false disables it only for authorized accounts, while requests without authorization are checked regardless.
max_sequence_lengthoptional
Typeenum
Default128
128256512
Upper limit on the model's sequence length.
required

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-pulid",
  "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": 34,
    "usd": "0.034",
    "charged": 34,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "reference_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",
        "width": 1024,
        "height": 768,
        "content_type": "image/jpeg"
      }
    ],
    "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, width, height, content_type}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.

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