> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apimart.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Gemini Omni Flash 视频生成

>  - Google 官方 Gemini Omni Flash 全能多模态视频生成模型
- 支持文生视频、图生视频、视频生视频（编辑），可混合文本 + 图片 + 视频输入
- 输出 720p / 24fps、3–10 秒、含音频；支持对话式多轮编辑
- 异步任务接口，提交后通过任务 ID 查询生成结果 

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url https://api.apimart.ai/v1/videos/generations \
    --header 'Authorization: Bearer <token>' \
    --header 'Content-Type: application/json' \
    --data '{
      "model": "gemini-omni-flash-preview",
      "prompt": "a red apple on a wooden table, short cinematic clip",
      "aspect_ratio": "16:9"
    }'
  ```

  ```python Python theme={null}
  import requests

  url = "https://api.apimart.ai/v1/videos/generations"

  payload = {
      "model": "gemini-omni-flash-preview",
      "prompt": "a red apple on a wooden table, short cinematic clip",
      "aspect_ratio": "16:9"
  }

  headers = {
      "Authorization": "Bearer <token>",
      "Content-Type": "application/json"
  }

  response = requests.post(url, json=payload, headers=headers)

  print(response.json())
  ```

  ```javascript JavaScript theme={null}
  const url = "https://api.apimart.ai/v1/videos/generations";

  const payload = {
    model: "gemini-omni-flash-preview",
    prompt: "a red apple on a wooden table, short cinematic clip",
    aspect_ratio: "16:9"
  };

  const headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
  };

  fetch(url, {
    method: "POST",
    headers: headers,
    body: JSON.stringify(payload)
  })
    .then(response => response.json())
    .then(data => console.log(data))
    .catch(error => console.error("Error:", error));
  ```

  ```go Go theme={null}
  package main

  import (
      "bytes"
      "encoding/json"
      "fmt"
      "io/ioutil"
      "net/http"
  )

  func main() {
      url := "https://api.apimart.ai/v1/videos/generations"

      payload := map[string]interface{}{
          "model":        "gemini-omni-flash-preview",
          "prompt":       "a red apple on a wooden table, short cinematic clip",
          "aspect_ratio": "16:9",
      }

      jsonData, _ := json.Marshal(payload)

      req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
      req.Header.Set("Authorization", "Bearer <token>")
      req.Header.Set("Content-Type", "application/json")

      client := &http.Client{}
      resp, err := client.Do(req)
      if err != nil {
          panic(err)
      }
      defer resp.Body.Close()

      body, _ := ioutil.ReadAll(resp.Body)
      fmt.Println(string(body))
  }
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "code": 200,
    "data": [
      {
        "status": "submitted",
        "task_id": "task_01KS1H7ZYSJWH1N779S2FSHTKA"
      }
    ]
  }
  ```

  ```json 400 theme={null}
  {
    "error": {
      "code": 400,
      "message": "请求参数无效",
      "type": "invalid_request_error"
    }
  }
  ```

  ```json 401 theme={null}
  {
    "error": {
      "code": 401,
      "message": "身份验证失败，请检查您的API密钥",
      "type": "authentication_error"
    }
  }
  ```

  ```json 402 theme={null}
  {
    "error": {
      "code": 402,
      "message": "账户余额不足，请充值后再试",
      "type": "payment_required"
    }
  }
  ```

  ```json 429 theme={null}
  {
    "error": {
      "code": 429,
      "message": "请求过于频繁，请稍后再试",
      "type": "rate_limit_error"
    }
  }
  ```
</ResponseExample>

## 认证

<ParamField header="Authorization" type="string" required>
  所有接口均需要使用 Bearer Token 进行认证。

  获取 API Key：

  访问 [API Key 管理页面](https://apimart.ai/keys) 获取您的 API Key。

  使用时在请求头中添加：

  ```
  Authorization: Bearer YOUR_API_KEY
  ```
</ParamField>

## 请求参数

<ParamField body="model" type="string" required>
  视频生成模型名称，固定为 `gemini-omni-flash-preview`。
</ParamField>

<ParamField body="prompt" type="string" required>
  文本指令。文生视频为场景描述；图 / 视频生视频为动作 / 风格 / 编辑指令。

  <Note>
    `prompt` 与参考素材（`image_urls` / `video_urls`）**至少提供其一**。
  </Note>
</ParamField>

<ParamField body="image_urls" type="array<string>">
  参考图，最多 **16 张**。每项为 `http(s)://` URL。

  支持 JPEG / PNG。多主体（如「猫 + 毛线球」）可传多张，并在 `prompt` 中描述它们如何互动。
</ParamField>

<ParamField body="video_urls" type="array<string>">
  参考 / 待编辑视频，**最多 1 个**（不支持多视频引用）。可为 `http(s)://` 直链或 `data:video/...`。

  <Warning>
    参考视频 1 \~ 24 秒，官方建议 **≤3 秒**。
  </Warning>
</ParamField>

<ParamField body="aspect_ratio" type="string" default="16:9">
  视频宽高比，真正控制输出画面方向。

  仅支持：

  * `16:9` - 横屏（默认）
  * `9:16` - 竖屏

  其它值按 `16:9` 处理。
</ParamField>

<ParamField body="resolution" type="string" default="720p">
  视频分辨率。当前仅支持 `720p`。
</ParamField>

<ParamField body="extend_from_task_id" type="string">
  上一个任务ID：填上一次生成任务的\*\* `task_id`\*\*。
</ParamField>

## 响应

<ResponseField name="code" type="integer">
  响应状态码，成功时为 `200`。
</ResponseField>

<ResponseField name="data" type="array">
  返回任务数组。

  <Expandable title="数组元素">
    <ResponseField name="status" type="string">
      任务初始状态，提交成功时为 `submitted`。
    </ResponseField>

    <ResponseField name="task_id" type="string">
      任务唯一标识符，用于查询任务状态和结果。
    </ResponseField>
  </Expandable>
</ResponseField>

## 查询任务结果

视频生成为异步任务。提交后会返回 `task_id`，使用 [获取任务状态](/cn/api-reference/tasks/status) 接口查询生成进度和结果。

### 成功结果示例

```json theme={null}
{
  "code": 200,
  "data": {
    "id": "task_01KS1H7ZYSJWH1N779S2FSHTKA",
    "status": "completed",
    "progress": 100,
    "created": 1779246294,
    "completed": 1779246334,
    "actual_time": 40,
    "estimated_time": 60,
    "cost": 1.0,
    "credits_cost": 10,
    "result": {
      "videos": [
        {
          "url": ["https://cdn.example.com/gemini_omni_xxx.mp4"],
          "expires_at": 1779332760
        }
      ]
    }
  }
}
```

## 使用场景

### 场景 1：文生视频

```json theme={null}
{
  "model": "gemini-omni-flash-preview",
  "prompt": "a blue butterfly landing on a flower, macro, soft light",
  "aspect_ratio": "9:16"
}
```

### 场景 2：图生视频

```json theme={null}
{
  "model": "gemini-omni-flash-preview",
  "prompt": "turn this drawing into realistic footage, use it only as a motion guide",
  "image_urls": ["https://example.com/sketch.jpg"]
}
```

### 场景 3：视频生视频

```json theme={null}
{
  "model": "gemini-omni-flash-preview",
  "prompt": "when the person touches the mirror, make it ripple like liquid",
  "video_urls": ["https://example.com/clip.mp4"]
}
```