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Z-Image Plus Pro API

Alibaba 出品

Z-Image 依精確的自訂尺寸出圖,最大 2560 像素

alibaba/z-image-plus-pro/text-to-image
  • 生成圖片

在 POST /jobs/createTask 把模型名稱填成 alibaba/z-image-plus-pro/text-to-image 就能呼叫,US$0.019 起。

模型名稱alibaba/z-image-plus-pro/text-to-image
端點POST https://api.popnow.ai/api/v1/jobs/createTask
# 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-pro/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"

input 依下方的 Schema 產生,原樣就能通過驗證。把提示詞和連結換成你自己的即可。

價格

選項USD /張
標準US$0.019

美元計費 · 全部選項及價格:GET /models/alibaba/z-image-plus-pro/text-to-image

參數

這些欄位來自我們驗證每個請求所用的同一份 Schema。沒列出的欄位會被拒絕。

  • promptstring必填

    Describe the image to generate.

    範圍
    1 – … chars
  • widthinteger選填

    Output image width in pixels.

    預設值
    1024
    範圍
    256 – 2560
  • heightinteger選填

    Output image height in pixels.

    預設值
    1024
    範圍
    256 – 2560
  • enable_prompt_expansionboolean選填

    讓模型替簡短的提示詞補上細節。

    預設值
    false
  • seedinteger選填

    用同一個數字,結果就能重現。

    範圍
    0 – 2147483647
原始 JSON Schema
{
  "type": "object",
  "required": [
    "prompt"
  ],
  "properties": {
    "seed": {
      "type": "integer",
      "maximum": 2147483647,
      "minimum": 0,
      "description": "Random seed; zero requests a random seed."
    },
    "width": {
      "type": "integer",
      "default": 1024,
      "maximum": 2560,
      "minimum": 256,
      "description": "Output image width in pixels."
    },
    "height": {
      "type": "integer",
      "default": 1024,
      "maximum": 2560,
      "minimum": 256,
      "description": "Output image height in pixels."
    },
    "prompt": {
      "type": "string",
      "minLength": 1,
      "description": "Describe the image to generate."
    },
    "enable_prompt_expansion": {
      "type": "boolean",
      "default": false,
      "description": "Expand the prompt before generation."
    }
  },
  "additionalProperties": false
}

回應、輪詢與回呼

所有模型的用法都一樣:先建立任務,再輪詢,或等待回呼。

先報價

cURL
curl -X POST https://api.popnow.ai/api/v1/jobs/quote \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "alibaba/z-image-plus-pro/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette"
  }
}'

執行前,將相同請求內容傳送至 POST /jobs/quote,即可查看預估費用與最高費用,單位為美元。報價不會執行任務或扣款。

已受理

HTTP
HTTP/1.1 202 Accepted

{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "state": "queued"
  },
  "request_id": "req_example_create"
}

HTTP 202 表示已受理:最高美元金額已保留,等待結算。 任務受理時,從 API 餘額中保留報價的最高金額;完成後按實際用量結算,實際扣款不超過保留金額,並釋放剩餘金額。任務失敗則釋放保留金額。

查詢狀態

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

每隔幾秒查詢一次並逐步拉長間隔,state 變成 succeeded、failed、canceled 或 expired 時停止。

完成的任務

JSON
{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "model": "alibaba/z-image-plus-pro/text-to-image",
    "state": "succeeded",
    "output": {
      "assets": [
        {
          "url": "https://cdn.popnow.ai/tasks/task_01k3m8x9q2z4v7n5p6r8s0t1w3/output.png?signature=FROM_RESPONSE",
          "expiresAt": "2026-10-17T12:20:00Z",
          "mime": "image/png",
          "width": 1024,
          "height": 1024
        }
      ]
    },
    "settled": true
  },
  "request_id": "req_example_record"
}

請在 expiresAt 之前從 url 下載。之後需要新連結,請呼叫 POST /common/download-url。

驗證回呼

Node.js
import { createHash, createHmac, timingSafeEqual } from "node:crypto";
import express from "express";

const app = express();
// express.raw keeps the exact bytes that were signed; express.json would not match.
app.post("/hooks/popnow", express.raw({ type: "application/json" }), (req, res) => {
  const timestamp = req.header("X-Webhook-Timestamp");
  const signature = req.header("X-Webhook-Signature") ?? "";
  const body = JSON.parse(req.body.toString("utf8"));
  const taskId = body.data?.taskId ?? body.task_id;
  const digest = createHash("sha256").update(req.body).digest("hex");
  const expected = createHmac("sha256", process.env.POPNOW_WEBHOOK_SECRET)
    .update(`${taskId}.${timestamp}.${digest}`)
    .digest("base64");
  const ok = expected.length === signature.length && timingSafeEqual(Buffer.from(expected), Buffer.from(signature));
  // Check the signature first, then reject anything older than five minutes.
  if (!ok || Math.abs(Date.now() / 1000 - Number(timestamp)) > 300) return res.status(401).end();
  res.status(200).end(); // answer fast, then fetch the task and store its files
});

設定 callBackUrl 後,我們會把完成的任務送給你。先用原始請求內容驗證簽名,再信任它。

上傳本機檔案

cURL
curl -X POST https://api.popnow.ai/api/v1/common/upload-url \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contentType": "image/png", "bytes": 482113}'

# PUT the file bytes to data.uploadUrl with every header in data.headers, then commit it:
curl -X POST https://api.popnow.ai/api/v1/files/$FILE_ID/commit \
  -H "Authorization: Bearer $POPNOW_API_KEY"
# The commit returns a popnow://f/... reference. Put it in any image, video or
# audio field of the task input instead of a public https URL.

公開的 https 連結可以直接用。本機檔案要先經過 upload-url 和 commit。

關於 Z-Image Plus Pro

Z-Image 依精確的自訂尺寸出圖,最大 2560 像素。

在 POST /jobs/createTask 把模型名稱填成 alibaba/z-image-plus-pro/text-to-image 就能呼叫,US$0.019 起。

請求參數

參數必填說明
seed否用同一個數字,結果就能重現。 ≥ 0 · ≤ 2147483647
width否Output image width in pixels. ≥ 256 · ≤ 2560 · 預設值: 1024
height否Output image height in pixels. ≥ 256 · ≤ 2560 · 預設值: 1024
prompt是Describe the image to generate.
enable_prompt_expansion否讓模型替簡短的提示詞補上細節。 預設值: false

價格

價格以美元計。API 使用獨立的美元餘額。網站點數不能用於 API,也不能轉入 API 餘額;API 餘額同樣不能轉為網站點數。 任務受理時,從 API 餘額中保留報價的最高金額;完成後按實際用量結算,實際扣款不超過保留金額,並釋放剩餘金額。任務失敗則釋放保留金額。

選項USD /張
標準US$0.019

執行前,將相同請求內容傳送至 POST /jobs/quote,即可查看預估費用與最高費用,單位為美元。報價不會執行任務或扣款。

API 快速上手

三步驟呼叫 Z-Image Plus Pro API

  1. 建立 API 金鑰. 登入 PopNow,在 API 主控台建立金鑰。金鑰以 sk-popnow- 開頭,API 呼叫使用獨立的美元餘額。
  2. 送出請求. 對 POST /jobs/createTask 送出請求,model 填 alibaba/z-image-plus-pro/text-to-image,input 依照參數表填寫。回應會立即傳回任務 ID。
  3. 取得結果. 用任務 ID 輪詢 GET /jobs/recordInfo,或帶上 callBackUrl,結果會推送到該網址。任務成功後下載輸出連結。
# 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-pro/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"

請把提示詞和連結換成你自己的。API 頁籤裡有回應、輪詢和回呼的參考。

Z-Image Plus Pro API 常見問題

Z-Image Plus Pro API 怎麼收費?

Z-Image Plus Pro:US$0.019/張。API 使用獨立的美元餘額。網站點數不能用於 API,也不能轉入 API 餘額;API 餘額同樣不能轉為網站點數。 任務受理時,從 API 餘額中保留報價的最高金額;完成後按實際用量結算,實際扣款不超過保留金額,並釋放剩餘金額。任務失敗則釋放保留金額。

Z-Image Plus Pro 在 API 裡的模型名稱是什麼?

在 POST /jobs/createTask 的 model 欄位填 生成圖片用 alibaba/z-image-plus-pro/text-to-image。

更多 Z-Image Plus Pro 相關內容