Seedance 2.0 Fast API 呼叫參考
更快的 Seedance 2.0，720p 有聲
只要一把 PopNow API 金鑰，就能在自己的程式裡呼叫 Seedance 2.0 Fast。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
- ByteDance
- 產出
- 影片
- 起價
- 3.38 點 每秒成片 ($0.0338)
- 一般耗時
- 約 138 秒
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。
生成影片
bytedance/seedance-2.0-fast/text-to-video
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
generate_audio = false, resolution = 480p | 6.75 | $0.0675 |
generate_audio = true, resolution = 480p | 6.75 | $0.0675 |
enable_web_search = true, generate_audio = false, resolution = 480p | 10.53 | $0.1053 |
enable_web_search = true, generate_audio = true, resolution = 480p | 10.53 | $0.1053 |
generate_audio = false, resolution = 720p | 14.52 | $0.1452 |
generate_audio = true, resolution = 720p | 14.52 | $0.1452 |
enable_web_search = true, generate_audio = false, resolution = 720p | 22.32 | $0.2232 |
enable_web_search = true, generate_audio = true, resolution = 720p | 22.32 | $0.2232 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
prompt必填 | string | — | — | Describe the intended subject, action, camera, light, sound, and constraints. |
aspect_ratio選填 | string | adaptive | 16:9, 9:16, 4:3, 3:4, 1:1, 21:9, adaptive | Output frame ratio. |
resolution選填 | string | 720p | 480p, 720p | Output resolution. |
duration_seconds選填 | integer | 5 | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Requested output duration in seconds. Pass -1 for smart duration: the model picks the length itself instead of a fixed number. |
generate_audio選填 | boolean | true | — | Request synchronised output audio. |
enable_web_search選填 | boolean | false | — | Let the model search the web for information related to the prompt before rendering. Requests with it on are billed at the web-search rate. |
seed選填 | integer | — | 0 到 2147483647 | Random seed. Omit to let the model pick one. |
return_last_frame選填 | boolean | false | — | Also return the clip’s final frame as a separate image. |
bitrate_mode選填 | string | standard | standard, high | Encoding bitrate of the delivered file: standard, or high for crisper detail and a larger file. |
watermark選填 | boolean | false | — | Add the model’s visible "AI generated" watermark to the video. |
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。
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": "bytedance/seedance-2.0-fast/text-to-video",
"input": {
"prompt": "A paper boat drifts down a rain-soaked street at dusk, neon signs reflecting in the water, slow tracking shot at ground level",
"enable_web_search": false,
"generate_audio": true,
"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。
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"圖生影片
bytedance/seedance-2.0-fast/image-to-video
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
generate_audio = false, resolution = 480p | 6.75 | $0.0675 |
generate_audio = true, resolution = 480p | 6.75 | $0.0675 |
generate_audio = false, resolution = 720p | 14.52 | $0.1452 |
generate_audio = true, resolution = 720p | 14.52 | $0.1452 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
image_url必填 | string | — | — | A source image that you are authorised to process. |
prompt選填 | string | — | — | Describe the intended subject, action, camera, light, sound, and constraints. |
last_image_url選填 | string | — | — | Optional closing image for the chosen video workflow. |
aspect_ratio選填 | string | adaptive | 16:9, 9:16, 4:3, 3:4, 1:1, 21:9, adaptive | Output frame ratio. |
resolution選填 | string | 720p | 480p, 720p | Output resolution. |
duration_seconds選填 | integer | 5 | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Requested output duration in seconds. Pass -1 for smart duration: the model picks the length itself instead of a fixed number. |
generate_audio選填 | boolean | true | — | Request synchronised output audio. |
seed選填 | integer | — | 0 到 2147483647 | Random seed. Omit to let the model pick one. |
return_last_frame選填 | boolean | false | — | Also return the clip’s final frame as a separate image. |
bitrate_mode選填 | string | standard | standard, high | Encoding bitrate of the delivered file: standard, or high for crisper detail and a larger file. |
watermark選填 | boolean | false | — | Add the model’s visible "AI generated" watermark to the video. |
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。
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": "bytedance/seedance-2.0-fast/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",
"generate_audio": true,
"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。
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
bytedance/seedance-2.0-fast/reference-to-video
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
generate_audio = false, resolution = 480p, with_video = true | 3.38 | $0.0338 |
generate_audio = true, resolution = 480p, with_video = true | 3.38 | $0.0338 |
generate_audio = false, resolution = 480p, with_video = false | 6.75 | $0.0675 |
generate_audio = true, resolution = 480p, with_video = false | 6.75 | $0.0675 |
generate_audio = false, resolution = 720p, with_video = true | 7.27 | $0.0727 |
generate_audio = true, resolution = 720p, with_video = true | 7.27 | $0.0727 |
generate_audio = false, resolution = 720p, with_video = false | 14.52 | $0.1452 |
generate_audio = true, resolution = 720p, with_video = false | 14.52 | $0.1452 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
prompt必填 | string | — | — | Describe the intended subject, action, camera, light, sound, and constraints. |
reference_image_urls選填 | array<string> | — | 最多 9 項 | Authorised image references. |
reference_video_urls選填 | array<string> | — | 最多 3 項 | Authorised video references. |
reference_audio_urls選填 | array<string> | — | 最多 3 項 | Authorised audio references. |
aspect_ratio選填 | string | adaptive | 16:9, 9:16, 4:3, 3:4, 1:1, 21:9, adaptive | Output frame ratio. |
resolution選填 | string | 720p | 480p, 720p | Output resolution. |
duration_seconds選填 | integer | 5 | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Requested output duration in seconds. Pass -1 for smart duration: the model picks the length itself instead of a fixed number. |
generate_audio選填 | boolean | true | — | Request synchronised output audio. |
seed選填 | integer | — | 0 到 2147483647 | Random seed. Omit to let the model pick one. |
return_last_frame選填 | boolean | false | — | Also return the clip’s final frame as a separate image. |
bitrate_mode選填 | string | standard | standard, high | Encoding bitrate of the delivered file: standard, or high for crisper detail and a larger file. |
watermark選填 | boolean | false | — | Add the model’s visible "AI generated" watermark to the video. |
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。
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": "bytedance/seedance-2.0-fast/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"
],
"generate_audio": true,
"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。
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
bytedance/seedance-2.0-fast/video-extend
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
generate_audio = false, resolution = 480p | 6.75 | $0.0675 |
generate_audio = true, resolution = 480p | 6.75 | $0.0675 |
generate_audio = false, resolution = 720p | 14.52 | $0.1452 |
generate_audio = true, resolution = 720p | 14.52 | $0.1452 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
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. |
prompt選填 | string | — | — | What happens next: the action that follows, the camera move and the sound. Optional. |
last_image_url選填 | string | — | — | Optional closing image: the new segment lands on this picture. Leave it out and the model decides how the shot ends. |
resolution選填 | string | 720p | 480p, 720p | Resolution of the new segment. Match your source clip. |
duration_seconds選填 | integer | 5 | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Length of the new segment in seconds. This is the billed quantity; the source clip is added on top and is not billed. Pass -1 for smart duration: the model picks the length itself. |
generate_audio選填 | boolean | true | — | Generate a native soundtrack for the new segment. The source keeps its own sound either way. |
seed選填 | integer | — | 0 到 2147483647 | Random seed. Omit to let the model pick one. |
bitrate_mode選填 | string | standard | standard, high | Encoding bitrate of the delivered file: standard, or high for crisper detail and a larger file. |
watermark選填 | boolean | false | — | Add the model’s visible "AI generated" watermark to the video. |
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。
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": "bytedance/seedance-2.0-fast/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",
"generate_audio": true,
"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。
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"