API 参考图片模型Seedream 5.0 Flash Layered
Seedream 5.0 Flash Layered
Seedream Flash API generation with actual-cost billing.
使用Seedream Flash将单图拆成底图与透明图层。
提供方
ByteDance模型 ID
seedream-5.0-flash-layered请求端点
POST /api-platform/v1/generations鉴权与请求地址
API 地址为 https://aihub-admin.aimix.pro。创建和查询任务均须传入 Authorization: Bearer <PIXMIND_API_KEY>；提交 JSON 时还须设置 Content-Type: application/json。请将密钥保存在服务端环境变量中。
模型说明
- 输入一张PNG/JPEG，提示词可省略，size支持1K/1.5K/2K/auto。先按17张输出各15积分预扣，最后按APIMart实际美元成本×1.15×6.77×140合计取整结算，多预扣差额退回。标准任务查询返回images、包含位置与zIndex的layers以及billing.settledPoints；也支持model=seedream-5.0-flash配合layer_decomposition=true。
请求参数
| 参数 | 类型 | 必填 | 说明 |
|---|---|---|---|
model | string | 是 | Flash分层模型。 |
image_urls | string[] | 是 | 一张PNG/JPEG URL或Data URL。 |
prompt | string | 否 | 可选分层指令。 |
size | string | 否 | 输出分辨率档位。 可选值: 默认值: |
请求示例
cURL
curl --request POST 'https://aihub-admin.aimix.pro/api-platform/v1/generations' \
-H "Authorization: Bearer $PIXMIND_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seedream-5.0-flash-layered",
"image_urls": [
"https://example.com/poster.png"
],
"size": "2K"
}'JavaScript
// Node.js 20+. Keep the API key on your server.
const apiKey = process.env.PIXMIND_API_KEY;
if (!apiKey) throw new Error("PIXMIND_API_KEY is required");
const response = await fetch("https://aihub-admin.aimix.pro/api-platform/v1/generations", {
method: "POST",
headers: {
Authorization: `Bearer ${apiKey}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
"model": "seedream-5.0-flash-layered",
"image_urls": [
"https://example.com/poster.png"
],
"size": "2K"
}),
signal: AbortSignal.timeout(30_000)
});
const task = await response.json();
if (!response.ok || task.code !== 1000) {
throw new Error(task.message ?? task.error?.message ?? `HTTP ${response.status}`);
}
console.log(task);任务受理响应
生成任务为异步处理。请保存 taskId，并轮询 GET /api-platform/v1/tasks/{taskId}，直到状态为 ready 或 failed。
200 OK
{
"code": 1000,
"data": {
"id": "img_44160",
"taskId": 44160,
"type": "image",
"model": "seedream-5.0-flash-layered",
"status": "processing"
}
}查询任务与获取结果
将示例中的 44160 替换为受理响应中的 data.taskId，并使用同一用户所属的 Key 查询。pending、processing 为进行中状态；ready、failed 为终态。ready 时读取图片的 images 或视频的 videoUrl，failed 时读取 errorMessage。示例最多查询 60 次；超时后请保留 taskId 稍后继续查询，避免重复创建任务。结果 URL 仅为示意。
cURL
curl 'https://aihub-admin.aimix.pro/api-platform/v1/tasks/44160' \
-H "Authorization: Bearer $PIXMIND_API_KEY"JavaScript
// Continue after the request example above.
const taskId = task.data?.taskId;
if (!Number.isInteger(taskId)) throw new Error("Missing numeric taskId");
async function waitForTask(taskId) {
for (let attempt = 0; attempt < 60; attempt++) {
await new Promise(resolve => setTimeout(resolve, Math.min(2000 * 1.5 ** attempt, 10000)));
const response = await fetch(`https://aihub-admin.aimix.pro/api-platform/v1/tasks/${taskId}`, {
headers: { Authorization: `Bearer ${apiKey}` },
signal: AbortSignal.timeout(30_000)
});
const result = await response.json();
if (!response.ok || result.code !== 1000) {
throw new Error(result.message ?? `HTTP ${response.status}`);
}
const data = result.data;
if (data.status === "ready") return data;
if (data.status === "failed") {
throw new Error(data.errorMessage ?? "Generation failed");
}
if (!["pending", "processing"].includes(data.status)) {
throw new Error(`Unexpected task status: ${data.status}`);
}
}
throw new Error(`Polling timed out; save taskId ${taskId} to query again later`);
}
const result = await waitForTask(taskId);
console.log(result.images);200 OK · ready
{
"code": 1000,
"data": {
"taskId": 44160,
"type": "image",
"model": "seedream-5.0-flash-layered",
"status": "ready",
"progress": 100,
"images": [
"https://example.com/result.png"
]
}
}