> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anyfast.com.cn/llms.txt
> Use this file to discover all available pages before exploring further.
# Seedance 2.0 任务查询
> 查询字节跳动 Seedance 2.0 视频生成任务的状态和结果。
创建 Seedance 2.0 视频生成任务后，使用此端点轮询任务状态并在完成后获取结果。
## 端点
```
GET /v1/video/generations/{task_id}
```
## 快速示例
```bash cURL theme={null}
curl https://www.anyfast.com.cn/v1/video/generations/asyntask_h81efT0qwtLnzyt6VENmCZ6VXSfNxE2E \
-H "Authorization: Bearer YOUR_API_KEY"
```
```python Python theme={null}
import requests, time
task_id = "asyntask_h81efT0qwtLnzyt6VENmCZ6VXSfNxE2E"
while True:
r = requests.get(
f"https://www.anyfast.com.cn/v1/video/generations/{task_id}",
headers={"Authorization": "Bearer YOUR_API_KEY"}
).json()
status = r["data"]["status"]
if status == "SUCCESS":
print("视频 URL:", r["data"]["result_url"])
break
if status == "FAILURE":
print("失败:", r["data"]["fail_reason"])
break
time.sleep(15)
```
## 任务状态
| `data.status` | 含义 | 后续动作 |
| ------------- | -------------------------- | ---------------------------- |
| `NOT_START` | 任务已接收，尚未排队 | 继续轮询 |
| `QUEUED` | 排队中 | 继续轮询 |
| `IN_PROGRESS` | 处理中（`progress` 从 50% 开始递进） | 继续轮询，建议 15s 间隔 |
| `SUCCESS` | 完成 | 读取 `data.result_url` |
| `FAILURE` | 失败 | 读取 `data.fail_reason`，平台自动退费 |
视频生成约需 1-5 分钟。`result_url` 有效期 **24 小时**——请立即下载或转存。
## 顶层响应字段
| 字段 | 类型 | 说明 |
| -------------------------- | ------ | ----------------------------------------------------------------------- |
| `data.task_id` | string | 平台任务 ID（格式 `asyntask_xxx`） |
| `data.action` | string | 任务子类型：`generate`、`referenceGenerate`、`firstTailGenerate`、`omniGenerate` |
| `data.status` | string | 任务状态（见上表） |
| `data.result_url` | string | 预签名下载 URL，**有效期 24 小时**。失败任务此字段省略 |
| `data.original_result_url` | string | **仅超分任务返回。** 上游原始（增强前）视频 URL |
| `data.fail_reason` | string | 失败时为错误信息。*历史兼容*：成功时该字段会被复制为 `result_url` 的值，兼容老客户端 |
| `data.submit_time` | int64 | 提交时间戳（Unix 秒） |
| `data.start_time` | int64 | 上游开始时间戳；未开始为 `0` |
| `data.finish_time` | int64 | 完成时间戳 |
| `data.progress` | string | 进度百分比文本，如 `"50%"`、`"100%"` |
| `data.request_id` | string | 请求溯源 ID |
| `data.data` | object | 上游原始输出（见下文） |
## `data.data` — 上游原始输出
| 字段 | 说明 |
| ------------------------------- | ------------------------------------------------------------ |
| `content.video_url` | 生成的视频 URL（普通任务等同于外层 `result_url`） |
| `id` | 上游任务 ID |
| `model` | 上游模型 ID |
| `duration` | 视频时长（秒） |
| `ratio` | 宽高比 |
| `resolution` | 上游原始分辨率。**超分任务**为下调后的上游分辨率，用户感知的最终分辨率在 `super_resolution` 字段 |
| `super_resolution` | **仅超分任务返回。** 超分后的最终分辨率（如 `720p`、`2k`） |
| `framespersecond` | 帧率 |
| `generate_audio` | 是否生成了音频 |
| `seed` | 使用的随机种子 |
| `status` | 上游状态（`succeeded`、`failed`、`running` 等） |
| `usage.completion_tokens` | 上游原始 completion tokens |
| `usage.total_tokens` | 上游原始 total tokens |
| `usage.super_resolution_tokens` | **仅超分任务返回。** 超分系数应用后的 token 数，对应实际计费 token |
## 成功响应（普通任务）
```json theme={null}
{
"code": "success",
"message": "",
"data": {
"task_id": "asyntask_h81efT0qwtLnzyt6VENmCZ6VXSfNxE2E",
"action": "generate",
"status": "SUCCESS",
"result_url": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/...mp4?...",
"fail_reason": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/...mp4?...",
"submit_time": 1777288506,
"start_time": 1777288508,
"finish_time": 1777288800,
"progress": "100%",
"request_id": "20260427111505260254000NBdvZFoP",
"data": {
"content": {"video_url": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/...mp4?..."},
"id": "cgt-20260427191505-9j2q7",
"model": "doubao-seedance-2-0-260128",
"duration": 5,
"ratio": "16:9",
"resolution": "720p",
"framespersecond": 24,
"generate_audio": true,
"seed": 4304,
"status": "succeeded",
"usage": {"completion_tokens": 108900, "total_tokens": 108900}
}
}
}
```
## 成功响应（超分任务）
超分模型（如 `seedance-turbo`）走"上游低分辨率生成 + MediaKit 超分增强"两阶段流程，相比普通任务多以下字段：
```json theme={null}
{
"code": "success",
"message": "",
"data": {
"task_id": "asyntask_2cEAvaCpERzvSo7wfCCPZmNlGx8cjnu4",
"action": "generate",
"status": "SUCCESS",
"result_url": "https://...vod.cn-north-1.volcvideo.com/...?preview=1&auth_key=...",
"original_result_url": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/...mp4?...",
"fail_reason": "https://...vod.cn-north-1.volcvideo.com/...?preview=1&auth_key=...",
"submit_time": 1777288507,
"start_time": 1777288509,
"finish_time": 1777288834,
"progress": "100%",
"request_id": "20260427111507187625000wErxKeB6",
"data": {
"content": {"video_url": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/...mp4?..."},
"id": "cgt-20260427191507-f5n97",
"duration": 5,
"ratio": "16:9",
"resolution": "480p",
"super_resolution": "720p",
"usage": {
"completion_tokens": 50638,
"total_tokens": 50638,
"super_resolution_tokens": 114441
}
}
}
}
```
> 注意 `data.resolution = "480p"` 是上游原始值（系统将用户请求的 720p 在请求阶段下调到 480p 发给上游以节省成本）；`data.super_resolution = "720p"` 才是用户感知到的最终分辨率。
## 失败响应
```json theme={null}
{
"code": "success",
"message": "",
"data": {
"task_id": "asyntask_xxx",
"action": "generate",
"status": "FAILURE",
"fail_reason": "task failed, code: InvalidParameter, message: img_url must be set for image to video method",
"submit_time": 1775802896,
"start_time": 0,
"finish_time": 1775802902,
"progress": "100%",
"request_id": "..."
}
}
```
平台**自动退还**预扣额度——无需调用方操作。
查看 Seedance 2.0 任务查询 的交互式 API Playground。