About Z-Image Plus
Z-Image at exact custom sizes up to 1536 px.
Call it with the model name alibaba/z-image-plus/text-to-image on POST /jobs/createTask, from $0.01235.
Request parameters
| Parameter | Required | Description |
|---|---|---|
seed | No | Reuse the same number to get a repeatable result. ≥ 0 · ≤ 2147483647 |
width | No | Output image width in pixels. ≥ 256 · ≤ 1536 · Default: 1024 |
height | No | Output image height in pixels. ≥ 256 · ≤ 1536 · Default: 1536 |
prompt | Yes | Describe the image to generate. |
enable_prompt_expansion | No | Lets the model add detail to a short prompt. Default: false |
Pricing
Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
| Option | USD per image |
|---|---|
| false | $0.01235 |
| true | $0.0133 |
Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.
API quick start
Call the Z-Image Plus API in three steps
- Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
- Send the request. POST /jobs/createTask with model alibaba/z-image-plus/text-to-image and an input object that follows the parameter table. The response returns a task ID straight away.
- Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $IDEMPOTENCY_KEY" \
-d '{
"model": "alibaba/z-image-plus/text-to-image",
"input": {
"prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette"
}
}'
# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
-H "Authorization: Bearer $POPNOW_API_KEY"Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.
Z-Image Plus API questions
How much does the Z-Image Plus API cost?
Z-Image Plus costs $0.01235 per image. Prices by option: false $0.01235 per image, true $0.0133 per image. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
What is the model name for Z-Image Plus in the API?
Put alibaba/z-image-plus/text-to-image for Create Image in the model field of POST /jobs/createTask.