Vidu Q3 Pro API reference
Animate a frame with sound on by default, up to 16 seconds
Call Vidu Q3 Pro from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.
At a glance
- Made by
- Vidu
- Output
- Video
- From
- 8.1 credits per second of output ($0.081)
- Typical time
- about 103 s
- Model IDs
1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.
Image to Video
vidu/q3-pro/image-to-video
Price
| Option | Credits (per second of output) | US dollars |
|---|---|---|
Default | 8.1 | $0.081 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
image_urlRequired | string (uri) | — | — | Opening frame. The clip starts from this image. |
promptRequired | string | — | — | Describe what happens after the opening frame: the action, the camera, and the mood. |
movement_amplitudeOptional | string | auto | auto, small, medium, large | How much things in the frame move. |
duration_secondsOptional | integer | 5 | 1 to 16 | Requested output length in seconds. |
resolutionOptional | string | 540p | 540p | Output resolution. |
generate_audioOptional | boolean | true | — | Request synchronised output audio. |
bgmOptional | boolean | true | — | Add a background music bed that fits the scene. |
seedOptional | integer | — | 0 to 2147483647 | Random seed. Keep it fixed only for controlled comparisons, not as a frame-identical guarantee. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in image_url. Replace them with your own public HTTPS links, uploads or saved assets.
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-pro/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": "540p",
"duration_seconds": 5
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"