Vidu Q3 API 调用参考
让一帧画面动起来，最长 16 秒，1080p
用一个 PopNow API 密钥，就能在自己的代码里调用 Vidu Q3。下面列出要填的调用名、这个型号接受的每个输入字段、每次请求花多少积分，以及一段可以直接粘进终端运行的请求。
参数说明直接取自型号的输入 schema，暂时只有英文。
一览
- 出品方
- Vidu
- 产出
- 视频
- 起价
- 10.5 积分 每秒成片 ($0.105)
1 积分 = 0.01 美元。任务受理时先冻结可能的最高费用，完成后按实际用量结算、向上取整到整积分，多冻的退回；失败的任务不扣积分。想在运行前知道确切数字，先调 POST /api/v1/jobs/quote。
图生视频
vidu/q3/image-to-video
价格
| 选项 | 积分 (每秒成片) | 美元 |
|---|---|---|
540p | 10.5 | $0.105 |
720p | 22.5 | $0.225 |
1080p | 24 | $0.24 |
参数
| 字段 | 类型 | 默认值 | 取值范围 | 作用 |
|---|---|---|---|---|
image_url必填 | string (uri) | — | — | Opening frame. The clip starts from this image. |
prompt必填 | string | — | — | Describe what happens after the opening frame: the action, the camera, and the mood. |
duration_seconds可选 | integer | 5 | 1 到 16 | Requested output length in seconds. |
resolution可选 | string | 720p | 540p, 720p, 1080p | Output resolution. |
movement_amplitude可选 | string | auto | auto, small, medium, large | How much the subject and scene move. Leave it on auto to let the model read the opening frame. |
generate_audio可选 | boolean | true | — | Request synchronised output audio. |
bgm可选 | boolean | true | — | Add background music to the clip. Separate from generate_audio, which covers the sound of the scene itself. |
seed可选 | integer | — | 0 到 2147483647 | Random seed. Keep it fixed only for controlled comparisons, not as a frame-identical guarantee. |
请求示例
这段请求原样就能运行，没写的字段都用默认值。运行前先把密钥放进环境变量 POPNOW_API_KEY。
示例里的 image_url 用的是 PopNow 的示例素材，换成你自己的公开 HTTPS 链接、上传文件或已保存的素材即可。
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "vidu/q3/image-to-video",
"input": {
"prompt": "He lands softly on the rooftop, laughs and turns toward the camera while the balloons sway in the evening breeze; slow push-in",
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"resolution": "720p",
"duration_seconds": 5
}
}'响应里会立刻带回 taskId。之后用 GET /api/v1/jobs/recordInfo 取结果，或者在请求里加上 callBackUrl 等通知。
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"