Z-Image API reference

Call Z-Image from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.

At a glance

Made by: Alibaba
Output: Image
From: 1.5 credits per image ($0.015)
Typical time: about 11 s
Model IDs: alibaba/z-image-turbo/text-to-image

1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.

Create Image

alibaba/z-image-turbo/text-to-image

Price

Option	Credits (per image)	US dollars
`Default`	1.5	$0.015
`enable_prompt_expansion = true`	2.4	$0.024

Parameters

Field	Type	Default	Allowed	What it does
`prompt`Required	`string`	—	up to 1,000 characters	Describe the image to generate: subject, composition, style, and lighting.
`aspect_ratio`Optional	`string`	`1:1`	1:1, 4:3, 3:4, 16:9, 9:16	Aspect ratio of the generated image.
`enable_prompt_expansion`Optional	`boolean`	`false`	—	Expand the prompt into a fuller description before generating. Requests with it on are billed at the prompt-expansion rate.
`output_format`Optional	`string`	`png`	png	File format of the returned image.
`seed`Optional	`integer`	—	0 to 2147483647	Random seed for controlled comparisons. Omit it to let each run pick its own.

Example request

This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.

POST /api/v1/jobs/createTask?wait=60

curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask?wait=60" \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "model": "alibaba/z-image-turbo/text-to-image",
  "input": {
    "prompt": "A cozy reading nook beside a rain-streaked window, warm lamp light, a sleeping orange cat on a knitted blanket, soft film grain",
    "enable_prompt_expansion": false
  }
}'

The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.

GET /api/v1/jobs/recordInfo

curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"