FLUX 3 API 呼叫參考
聲畫同步的影片，另有快速草稿檔
只要一把 PopNow API 金鑰，就能在自己的程式裡呼叫 FLUX 3。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
- Black Forest Labs
- 產出
- 影片
- 起價
- 9 點 每秒成片 ($0.09)
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。
影片超清
black-forest-labs/flux-3/upscale
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
precise | 79.2 | $0.792 |
creative | 113.76 | $1.1376 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
video_url必填 | string (uri) | — | — | The clip to upscale, an MP4 of up to 20 seconds. Billed by its length, rounded up to whole seconds. |
upscale_mode選填 | string | precise | precise, creative | precise stays faithful to the source; creative also rebuilds fine detail and costs more. |
upscale_factor選填 | number | 2 | 1.5 到 3 | How many times larger, from 1.5 to 3. The aspect ratio is kept and the factor does not change the price. |
prompt選填 | string | — | 最多 5000 個字元 | Optional, creative mode only: the detail you want added, such as skin texture or fabric weave. |
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": "black-forest-labs/flux-3/upscale",
"input": {
"prompt": "Sharpen fine detail and keep the natural look",
"video_url": "https://media.popnow.ai/effects/flower-bloom-1abd6efb.mp4",
"upscale_mode": "precise"
}
}'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"生成影片
black-forest-labs/flux-3/text-to-video
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
quality = draft, resolution = 1080p | 9 | $0.09 |
quality = draft, resolution = 720p | 9 | $0.09 |
quality = standard, resolution = 720p | 25.5 | $0.255 |
quality = standard, resolution = 1080p | 43.5 | $0.435 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
prompt必填 | string | — | 最多 5000 個字元 | Describe the subject, action, camera, light and sound for the shot. |
aspect_ratio選填 | string | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 2:1 | Output aspect ratio. |
quality選填 | string | standard | standard, draft | standard renders at the chosen resolution; draft is a fast, lower-cost preview at 720p. |
resolution選填 | string | 720p | 720p, 1080p | Output resolution. draft renders at 720p only. |
duration_seconds選填 | integer | 5 | 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, … (+2) | Output length in whole seconds, 5 to 20. |
generate_audio選填 | boolean | true | — | Generate synchronized sound with the video. The price is the same either way. |
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": "black-forest-labs/flux-3/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",
"duration_seconds": 5,
"resolution": "720p",
"quality": "standard"
}
}'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
black-forest-labs/flux-3/image-to-video
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
quality = draft, resolution = 1080p | 9 | $0.09 |
quality = draft, resolution = 720p | 9 | $0.09 |
quality = standard, resolution = 720p | 25.5 | $0.255 |
quality = standard, resolution = 1080p | 43.5 | $0.435 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
prompt必填 | string | — | 最多 5000 個字元 | Describe the subject, action, camera, light and sound for the shot. |
image_url必填 | string (uri) | — | — | Opening frame. The subject keeps its look from this image. |
last_image_url選填 | string (uri) | — | — | Optional closing frame: the clip moves from the opening image to this one. |
aspect_ratio選填 | string | — | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 2:1 | Output aspect ratio. Omit it to follow the opening image. |
quality選填 | string | standard | standard, draft | standard renders at the chosen resolution; draft is a fast, lower-cost preview at 720p. |
resolution選填 | string | 720p | 720p, 1080p | Output resolution. draft renders at 720p only. |
duration_seconds選填 | integer | 5 | 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, … (+2) | Output length in whole seconds, 5 to 20. |
generate_audio選填 | boolean | true | — | Generate synchronized sound with the video. The price is the same either way. |
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": "black-forest-labs/flux-3/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",
"quality": "standard"
}
}'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
black-forest-labs/flux-3/video-extend
價格
| 選項 | 點數 (每秒成片) | 美元 |
|---|---|---|
quality = draft, resolution = 1080p | 18 | $0.18 |
quality = draft, resolution = 720p | 18 | $0.18 |
quality = standard, resolution = 720p | 61.5 | $0.615 |
quality = standard, resolution = 1080p | 79.5 | $0.795 |
參數
| 欄位 | 型別 | 預設值 | 可用值 | 用途 |
|---|---|---|---|---|
prompt必填 | string | — | 最多 5000 個字元 | Describe what happens next: the action, camera and sound that continue the clip. |
video_url必填 | string (uri) | — | — | The clip to continue, an MP4 of up to 15 seconds. The new segment picks up from its last frame. |
aspect_ratio選填 | string | — | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 2:1 | Output aspect ratio. Omit it to keep the shape of the source clip. |
quality選填 | string | standard | standard, draft | standard renders at the chosen resolution; draft is a fast, lower-cost preview at 720p. |
resolution選填 | string | 720p | 720p, 1080p | Output resolution. draft renders at 720p only. |
duration_seconds選填 | integer | 5 | 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, … (+2) | Length of the new segment in whole seconds, 5 to 20. The source clip is not included in the result. |
generate_audio選填 | boolean | true | — | Generate synchronized sound with the video. The price is the same either way. |
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": "black-forest-labs/flux-3/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",
"quality": "standard"
}
}'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"