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LTX-2.3 LoRA API 呼叫參考

LTX-2.3 立體聲影片，可載入你自己的 LoRA

只要一把 PopNow API 金鑰，就能在自己的程式裡呼叫 LTX-2.3 LoRA。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
Lightricks
產出
影片
起價
3.6 點 每秒成片 ($0.036)
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。

生成影片

lightricks/ltx-2.3-lora/text-to-video

價格

選項點數 (每秒成片)美元
480p3.6$0.036
720p5.4$0.054
1080p7.2$0.072

參數

欄位型別預設值可用值用途
prompt必填string——Describe the scene, the action, the camera and the sound. Put LoRA trigger words first and the soundtrack on its own Audio: line.
aspect_ratio選填string16:916:9, 9:16Output aspect ratio.
resolution選填string720p480p, 720p, 1080pOutput resolution.
duration_seconds選填integer55 到 20Requested output length in whole seconds, from 5 to 20.
loras選填array<object>[]最多 3 項Up to three LoRA weight files trained for LTX-2.3, each with its own strength. Files over 2 GiB are rejected.
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。

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": "lightricks/ltx-2.3-lora/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"
  }
}'

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"

圖生影片

lightricks/ltx-2.3-lora/image-to-video

價格

選項點數 (每秒成片)美元
480p3.6$0.036
720p5.4$0.054
1080p7.2$0.072

參數

欄位型別預設值可用值用途
prompt必填string——Describe what happens after the opening frame: the action, the camera and the sound. Put LoRA trigger words first.
image_url必填string (uri)——Opening frame. The clip starts from this image and keeps its aspect ratio.
resolution選填string720p480p, 720p, 1080pOutput resolution.
duration_seconds選填integer55 到 20Requested output length in whole seconds, from 5 to 20.
loras選填array<object>[]最多 3 項Up to three LoRA weight files trained for LTX-2.3, each with its own strength. Files over 2 GiB are rejected.
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": "lightricks/ltx-2.3-lora/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"

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