New: Nano Banana 2.1Try the model
API Stock

图像

图像编辑

使用参考图编辑背景、产品与风格，并掌握 Midjourney 操作。

阅读约 1 分钟2 个章节

编辑是一条指令：先说明要改变什么，再说明必须保留什么。参考图比大量形容词更准确地传达所需外观。

实操要点

按优先目标选择模型——速度、还原度、分辨率或控制能力——并保存每次结果的参数和版本。 nano-banana-*, gpt-image-2, wan2.7-image and midjourney — Image editing.

每次尝试只改一件事。好的输出应保留为参考图，它是下一轮迭代最可靠的起点。

将 finished 和 failed 视为终态。使用 polling 或 webhook，在服务器保存原始错误，并向用户展示安全的信息。

提示词与 API 示例

text
Replace the overcast sky with a clear blue one. Keep the building, the
lighting on the facade and the framing exactly as they are.
The original living-room input supplied with the Google editing example; its generation prompt is not published.
The original living-room input supplied with the Google editing example; its generation prompt is not published.

Source: Google AI for Developers, used under CC BY 4.0; format and dimensions adapted.

text
Using the provided image of a living room, change only the blue sofa to be a
vintage, brown leather chesterfield sofa. Keep the rest of the room, including
the pillows on the sofa and the lighting, unchanged.
Nano Banana 2.1 changes only the sofa while retaining the room, pillows and lighting from the source.
Nano Banana 2.1 changes only the sofa while retaining the room, pillows and lighting from the source.

Source: Google AI for Developers, used under CC BY 4.0; format and dimensions adapted.

text
Put the chair from image 1 into the room from image 2. Match the window light
and cast a soft shadow on the floor. Do not change the room's furniture or
the chair's upholstery.
text
The person from the reference, now standing on a train platform at night,
three-quarter view, rain, sodium lighting. Keep their face, hair and jacket
identical to the reference.
text
Redraw image 1 in the visual style of image 2 — same palette, line weight and
grain. Keep the composition and subject of image 1 unchanged.
text
A ceramic mug in the masked area, same lighting and perspective as the rest of
the frame

About these samples. Ready-made examples are copied to our own storage only when their source permits reuse. The exact prompt appears above each result, and the original source and license are linked below the media.

json
{
  "model": "z-image",
  "input": {
    "prompt": "Replace the overcast sky with a clear blue one, keep the lighting on the building consistent",
    "urls": ["https://example.com/facade.jpg"]
  }
}
json
{
  "model": "wan2.7-image",
  "input": {
    "prompt": "Put the chair from image 1 into the room from image 2, matching the window light",
    "urls": ["https://example.com/chair.png", "https://example.com/room.jpg"],
    "size": "3:2"
  }
}
sh
curl -X POST https://api.api-stock.com/api/v1/generation/create \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "midjourney",
    "input": {
      "action": "imagine",
      "prompt": "A weathered brass diving helmet on a workshop bench, volumetric dust",
      "size": "1:1",
      "version": "7",
      "stylize": 300
    }
  }'
json
{
  "code": 200,
  "data": {
    "taskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "status": "not_started",
    "createdAt": "2026-02-28T13:07:45.000Z"
  }
}
json
{
  "code": 200,
  "data": {
    "taskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "status": "finished",
    "files": [
      {
        "fileUrl": "https://storage.api-stock.com/generated/mj-grid-4c81.png",
        "fileType": "image"
      }
    ],
    "createdTime": "2026-02-28T13:07:45.000Z"
  }
}
sh
curl -X POST https://api.api-stock.com/api/v1/generation/create \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "midjourney",
    "input": {
      "action": "upscale",
      "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
      "index": 2
    }
  }'
ts
const BASE = "https://api.api-stock.com/api/v1";
const KEY = process.env.API_STOCK_KEY!;


async function submit(input: Record<string, unknown>): Promise<string> {
  const res = await fetch(`${BASE}/generation/create`, {
    method: "POST",
    headers: {
      Authorization: `Bearer ${KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ model: "midjourney", input }),
  });
  const body = await res.json();
  if (!res.ok) throw new Error(`${body.error.code}: ${body.error.message}`);
  return body.data.taskId;
}


async function wait(taskId: string) {
  for (;;) {
    await new Promise((r) => setTimeout(r, 5_000));
    const res = await fetch(`${BASE}/task/status/${taskId}`, {
      headers: { Authorization: `Bearer ${KEY}` },
    });
    const body = await res.json().catch(() => null);
    if (!res.ok) {
      const message = body?.error?.message ?? `${res.status} ${res.statusText}`;
      throw new Error(message);
    }
    const { data } = body;
    if (data.status === "finished") return data;
    if (data.status === "failed") throw new Error(data.errorMessage);
  }
}


const gridId = await submit({
  action: "imagine",
  prompt:
    "A weathered brass diving helmet on a workshop bench, volumetric dust",
  size: "1:1",
  version: "7",
  stylize: 300,
});
await wait(gridId);


const upscaleId = await submit({
  action: "upscale",
  parentTaskId: gridId,
  index: 2,
});
const upscaled = await wait(upscaleId);
console.log(upscaled.files[0].fileUrl); // → https://storage.api-stock.com/...
json
{
  "model": "midjourney",
  "input": {
    "action": "pan",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "direction": "left"
  }
}
json
{
  "model": "midjourney",
  "input": {
    "action": "zoom",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "zoomRatio": 1.5
  }
}
json
{
  "model": "midjourney",
  "input": {
    "action": "modal",
    "parentTaskId": "019ca8c4-3e17-7b55-9f10-cc2b6de0a8f4",
    "index": 2,
    "prompt": "Replace the bench with a slab of sea-worn granite",
    "maskUrl": "https://example.com/mask.png"
  }
}
json
{
  "model": "midjourney",
  "input": {
    "action": "describe",
    "imageUrls": ["https://example.com/reference.jpg"]
  }
}
json
{
  "model": "midjourney",
  "input": {
    "action": "blend",
    "imageUrls": [
      "https://example.com/texture-a.jpg",
      "https://example.com/texture-b.jpg",
      "https://example.com/texture-c.jpg"
    ],
    "dimensions": "LANDSCAPE"
  }
}
json
{
  "code": 400,
  "error": {
    "message": "action \"variation\" requires index or customId",
    "type": "BadRequest",
    "code": "invalid_input"
  }
}

用你自己的密钥跑一遍

在 API Stock 目录中选择模型、查看价格，再通过浏览器或 API 试用。

浏览目录API 参考

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