Vidu Q3 API reference
Animate a frame for up to 16 seconds at 1080p
Call Vidu Q3 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
- 10.5 credits per second of output ($0.105)
- 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/image-to-video
Price
| Option | Credits (per second of output) | US dollars |
|---|---|---|
540p | 10.5 | $0.105 |
720p | 22.5 | $0.225 |
1080p | 24 | $0.24 |
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. |
duration_secondsOptional | integer | 5 | 1 to 16 | Requested output length in seconds. |
resolutionOptional | string | 720p | 540p, 720p, 1080p | Output resolution. |
movement_amplitudeOptional | string | auto | auto, small, medium, large | How much the subject and scene move. Leave it on auto to let the model read the opening frame. |
generate_audioOptional | boolean | true | — | Request synchronised output audio. |
bgmOptional | boolean | true | — | Add background music to the clip. Separate from generate_audio, which covers the sound of the scene itself. |
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/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": "720p",
"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"