# hy-image 图像生成
> 文生图与参考图生图
> 参考图最多 5 张
> 支持 1K / 2K / 4K，也可直接给精确像素
`POST /v1/images/generations`
## 认证
- `Authorization` (string / 必填) — 所有接口均使用 Bearer Token 进行认证。 获取 API Key：[访问控制台](https://api.oairoute.com/keys) 创建。 请求时在请求头中添加： ```http Authorization: Bearer YOUR_OAIRoute_KEY ```
## 请求结构
请求体是平铺的 JSON，创作字段与输出字段都在顶层，没有 `content` 数组包装。
## 支持的场景
| 场景 | 字段组合 |
|---|---|
| 文生图 | `prompt` |
| 参考图生图 | `prompt` + `image` |
`size` 写 `auto` 或省略时，文生图回落为 `1:1`，图生图跟随参考图比例。
尺寸优先级从高到低：成对的 `width` / `height` → 精确像素 `size` → 比例配合 `resolution`。使用精确像素时 `resolution` 不参与尺寸计算。
## 请求参数
> **Note:** 
> 提交成功只返回任务 ID，不含图片本身。拿结果用 `task_id` 轮询[获取任务状态](../tasks/status.html)，图片地址在 `result.images[0].url`，该地址会过期，请及时转存。
- `model` (string / 必填) — 取值为 `hy-image-v3.5-preview`。
- `prompt` (string / 必填) — 画面描述，中英文均可。
- `size` (string / 可选) — 默认 `auto`。 可写宽高比 `1:1`、`2:3`、`3:2`、`3:4`、`4:3`、`4:5`、`5:4`、`9:16`、`16:9`、`21:9`，可写精确像素如 `2000x1104`，也可写 `auto`。
- `resolution` (string / 可选) — 取值 `1K`（默认）、`2K`、`4K`，其他值返回 400。
- `width` (integer / 可选) — 必须与 `height` 成对使用。 范围 256 到 8192，宽高乘积不超过 8294400，建议取 16 的倍数。
- `height` (integer / 可选) — 约束与 `width` 相同，必须成对提供。
- `image` (string | string[] / 可选) — 参考图，最多 5 张公网地址。 格式 JPEG、PNG、WEBP，单张建议不超过 7MB。
- `negative_prompt` (string / 可选) — 反向描述。
- `seed` (integer / 可选) — 随机种子，非负整数。`0` 或省略表示随机。
- `n` (integer / 可选) — 只能为 `1`。
## 计费
按张计费。比例形式按 `resolution` 档位计费；精确像素按短边判档：不超过 1024 为 1K，1025 到 2048 为 2K，超过 2048 为 4K。
失败任务全额退款。
## 响应
提交成功返回受理结构：
```json
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```
- `code` (integer / 总是返回) — 状态码，`200` 表示任务已受理。
- `data` (array / 总是返回) — 本次提交的任务列表。
- `data[].status` (string / 总是返回) — 受理状态，提交成功时为 `submitted`。
- `data[].task_id` (string / 总是返回) — 任务 ID，用它轮询结果。
完成态返回：
```json
{
  "code": 200,
  "data": {
    "id": "task_01K8SGYNNNVBQTXNR4MM964S7K",
    "status": "completed",
    "progress": 100,
    "result": {
      "images": [
        { "url": ["https://cdn.oairoute.com/f/image/task_01K8_0.png"], "expires_at": 1763174708 }
      ]
    },
    "created": 1763088289,
    "completed": 1763088302
  }
}
```
## 错误码
| HTTP | 含义 |
|---|---|
| 400 | 参数错误，type 为 invalid_request_error |
| 401 | Token 缺失或无效，type 为 authentication_error |
| 402 | 余额不足，type 为 payment_required |
| 429 | 触发限流 |
更多状态码与重试建议见[错误码与限流](../../support/errors.html)，常见报错的排查步骤见[常见问题](../../support/faq.html)。
## 支持的模型列表
| 模型 ID | 定位 |
|---|---|
| `hy-image-v3.5-preview` | 当前唯一型号 |
> **Note:** 完整模型目录（含价格、分辨率上限）可读取 `GET https://api.oairoute.com/api/pricing`。
## 使用示例
**文生图{Text to image}::cURL**
```
curl --request POST \
  --url 'https://api.oairoute.com/v1/images/generations' \
  --header 'Authorization: Bearer YOUR_OAIRoute_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "hy-image-v3.5-preview",
  "prompt": "山谷中的木屋，炊烟，清晨逆光",
  "size": "3:2",
  "resolution": "2K"
}'
```
**文生图{Text to image}::Python**
```
import requests
url = "https://api.oairoute.com/v1/images/generations"
headers = {
    "Authorization": "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
}
payload = {
  "model": "hy-image-v3.5-preview",
  "prompt": "山谷中的木屋，炊烟，清晨逆光",
  "size": "3:2",
  "resolution": "2K"
}
res = requests.post(url, headers=headers, json=payload)
print(res.json())
```
**文生图{Text to image}::JavaScript**
```
const res = await fetch("https://api.oairoute.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "hy-image-v3.5-preview",
  "prompt": "山谷中的木屋，炊烟，清晨逆光",
  "size": "3:2",
  "resolution": "2K"
}),
});
console.log(await res.json());
```
**200 文生图{Text to image}**
```
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```
**参考图生图{Reference to image}::cURL**
```
curl --request POST \
  --url 'https://api.oairoute.com/v1/images/generations' \
  --header 'Authorization: Bearer YOUR_OAIRoute_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "hy-image-v3.5-preview",
  "prompt": "把季节换成冬天，屋顶覆雪",
  "image": [
    "https://example.com/cabin.jpg"
  ]
}'
```
**参考图生图{Reference to image}::Python**
```
import requests
url = "https://api.oairoute.com/v1/images/generations"
headers = {
    "Authorization": "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
}
payload = {
  "model": "hy-image-v3.5-preview",
  "prompt": "把季节换成冬天，屋顶覆雪",
  "image": [
    "https://example.com/cabin.jpg"
  ]
}
res = requests.post(url, headers=headers, json=payload)
print(res.json())
```
**参考图生图{Reference to image}::JavaScript**
```
const res = await fetch("https://api.oairoute.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "hy-image-v3.5-preview",
  "prompt": "把季节换成冬天，屋顶覆雪",
  "image": [
    "https://example.com/cabin.jpg"
  ]
}),
});
console.log(await res.json());
```
**200 参考图生图{Reference to image}**
```
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```
**精确像素{Exact pixels}::cURL**
```
curl --request POST \
  --url 'https://api.oairoute.com/v1/images/generations' \
  --header 'Authorization: Bearer YOUR_OAIRoute_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "hy-image-v3.5-preview",
  "prompt": "超宽横幅，城市天际线",
  "size": "2000x1104"
}'
```
**精确像素{Exact pixels}::Python**
```
import requests
url = "https://api.oairoute.com/v1/images/generations"
headers = {
    "Authorization": "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
}
payload = {
  "model": "hy-image-v3.5-preview",
  "prompt": "超宽横幅，城市天际线",
  "size": "2000x1104"
}
res = requests.post(url, headers=headers, json=payload)
print(res.json())
```
**精确像素{Exact pixels}::JavaScript**
```
const res = await fetch("https://api.oairoute.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "hy-image-v3.5-preview",
  "prompt": "超宽横幅，城市天际线",
  "size": "2000x1104"
}),
});
console.log(await res.json());
```
**200 精确像素{Exact pixels}**
```
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```
**4K 输出{4K output}::cURL**
```
curl --request POST \
  --url 'https://api.oairoute.com/v1/images/generations' \
  --header 'Authorization: Bearer YOUR_OAIRoute_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "hy-image-v3.5-preview",
  "prompt": "瀑布特写，水雾，慢门效果",
  "size": "16:9",
  "resolution": "4K"
}'
```
**4K 输出{4K output}::Python**
```
import requests
url = "https://api.oairoute.com/v1/images/generations"
headers = {
    "Authorization": "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
}
payload = {
  "model": "hy-image-v3.5-preview",
  "prompt": "瀑布特写，水雾，慢门效果",
  "size": "16:9",
  "resolution": "4K"
}
res = requests.post(url, headers=headers, json=payload)
print(res.json())
```
**4K 输出{4K output}::JavaScript**
```
const res = await fetch("https://api.oairoute.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_OAIRoute_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "hy-image-v3.5-preview",
  "prompt": "瀑布特写，水雾，慢门效果",
  "size": "16:9",
  "resolution": "4K"
}),
});
console.log(await res.json());
```
**200 4K 输出{4K output}**
```
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```