PopNowAPI 文件
主要內容

Vidu Q4 Preview API 呼叫參考

最高 4K 影片，有聲音也有人物對白

只要一把 PopNow API 金鑰，就能在自己的程式裡呼叫 Vidu Q4 Preview。以下列出要填的呼叫名稱、這個型號接受的每個輸入欄位、每次請求花多少點數，以及一段可以直接貼進終端機執行的請求。

參數說明直接取自型號的輸入 schema，目前只有英文。

總覽

開發商
Vidu
產出
影片
起價
6.75 點 每秒成片 ($0.0675)
一般耗時
約 160 秒
呼叫名稱

1 點 = 0.01 美元。任務受理時會先保留可能的最高費用，完成後依實際用量結算、無條件進位到整點，多保留的會退回；失敗的任務不扣點數。想在執行前知道確切數字，請先呼叫 POST /api/v1/jobs/quote。

圖生影片

vidu/q4-preview/image-to-video

價格

選項點數 (每秒成片)美元
540p6.75$0.0675
720p14.25$0.1425
1080p18$0.18
2k28.5$0.285
4k58.5$0.585

參數

欄位型別預設值可用值用途
prompt必填string—最多 20000 個字元Describe what happens after the opening frame: the action, the dialogue in quotes, the camera and the sound.
image_url必填string (uri)——Opening frame. The clip starts from this image and keeps its shape.
resolution選填string720p540p, 720p, 1080p, 2k, 4kOutput resolution. 2k and 4k come back as 10-bit HEVC.
duration_seconds選填integer53 到 16Output length in whole seconds, from 3 to 16. Billed per second.
generate_audio選填booleantrue—Generate sound with the picture: dialogue, effects and ambience. Off gives a silent clip at the same price.
enable_prompt_expansion選填booleanfalse—Let the model rewrite and expand your prompt before generating.
seed選填integer—0 到 2147483647Random seed for controlled comparisons, not a frame-identical guarantee.

請求範例

這段請求原樣就能執行，沒寫的欄位都用預設值。執行前請先把金鑰放進環境變數 POPNOW_API_KEY。

範例中的 image_url 使用 PopNow 的範例素材，請換成你自己的公開 HTTPS 連結、上傳檔案或已儲存的素材。

POST /api/v1/jobs/createTask
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/q4-preview/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",
    "duration_seconds": 5,
    "resolution": "720p"
  }
}'

回應會立刻帶回 taskId。之後用 GET /api/v1/jobs/recordInfo 取得結果，或在請求裡加上 callBackUrl 等候通知。

GET /api/v1/jobs/recordInfo
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

參考生影片

vidu/q4-preview/reference-to-video

價格

選項點數 (每秒成片)美元
540p6.75$0.0675
720p14.25$0.1425
1080p18$0.18
2k28.5$0.285
4k58.5$0.585

參數

欄位型別預設值可用值用途
prompt必填string—最多 20000 個字元Describe the scene and refer to each reference by its position: "the woman from the first image", "the robe from the second image".
reference_image_urls必填array<string (uri)>—最多 15 項One to 15 reference images: people, outfits, products or places, in the order your prompt refers to them.
reference_audio_urls選填array<string (uri)>—最多 3 項Up to three reference audio clips (MP3, 3 to 12 seconds each) for a voice or a sound the clip should follow.
aspect_ratio選填string16:916:9, 9:16, 1:1, 3:4, 4:3Output aspect ratio.
resolution選填string720p540p, 720p, 1080p, 2k, 4kOutput resolution. 2k and 4k come back as 10-bit HEVC.
duration_seconds選填integer53 到 16Output length in whole seconds, from 3 to 16. Billed per second.
generate_audio選填booleantrue—Generate sound with the picture: dialogue, effects and ambience. Off gives a silent clip at the same price.
seed選填integer—0 到 2147483647Random seed for controlled comparisons, not a frame-identical guarantee.

請求範例

這段請求原樣就能執行，沒寫的欄位都用預設值。執行前請先把金鑰放進環境變數 POPNOW_API_KEY。

範例中的 reference_image_urls 使用 PopNow 的範例素材，請換成你自己的公開 HTTPS 連結、上傳檔案或已儲存的素材。

POST /api/v1/jobs/createTask
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/q4-preview/reference-to-video",
  "input": {
    "prompt": "The man from the reference image jogs across a sunlit rooftop at golden hour and smiles at the camera; smooth tracking shot",
    "reference_image_urls": [
      "https://media.popnow.ai/influencer/examples/ava.webp"
    ],
    "duration_seconds": 5,
    "resolution": "720p"
  }
}'

回應會立刻帶回 taskId。之後用 GET /api/v1/jobs/recordInfo 取得結果，或在請求裡加上 callBackUrl 等候通知。

GET /api/v1/jobs/recordInfo
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

影片延伸

vidu/q4-preview/video-extend

價格

選項點數 (每秒成片)美元
540p6.75$0.0675
720p14.25$0.1425
1080p18$0.18
2k28.5$0.285
4k58.5$0.585

參數

欄位型別預設值可用值用途
prompt必填string—最多 20000 個字元Describe what happens next: the action that follows, the camera move and the sound. Put spoken lines in double quotes.
video_url必填string (uri)——The clip to continue: MP4, MOV or WebM, up to 60 seconds. Its last frame opens the new segment, and the result is your clip with the new segment joined on.
resolution選填string720p540p, 720p, 1080p, 2k, 4kResolution of the generated new segment. It sets how sharp the new part is; match your source clip. 2k and 4k segments come back as 10-bit HEVC.
duration_seconds選填integer53 到 16Length of the new segment in seconds, from 3 to 16. The source clip is added on top and is not billed.
generate_audio選填booleantrue—Generate sound for the new segment. The source keeps its own sound either way.
enable_prompt_expansion選填booleanfalse—Let the model rewrite and expand your prompt before generating.
seed選填integer—0 到 2147483647Random seed. Keep it fixed only for controlled comparisons, not as a frame-identical guarantee.

請求範例

這段請求原樣就能執行，沒寫的欄位都用預設值。執行前請先把金鑰放進環境變數 POPNOW_API_KEY。

範例中的 video_url 使用 PopNow 的範例素材，請換成你自己的公開 HTTPS 連結、上傳檔案或已儲存的素材。

POST /api/v1/jobs/createTask
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/q4-preview/video-extend",
  "input": {
    "prompt": "The flowers keep opening while the camera slowly pulls back to reveal a sunlit meadow",
    "video_url": "https://media.popnow.ai/effects/flower-bloom-1abd6efb.mp4",
    "duration_seconds": 5,
    "resolution": "720p"
  }
}'

回應會立刻帶回 taskId。之後用 GET /api/v1/jobs/recordInfo 取得結果，或在請求裡加上 callBackUrl 等候通知。

GET /api/v1/jobs/recordInfo
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

接下來

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