Vidu Q4 Preview Reference to Video
vidu/q4-preview/reference-to-video
Generate a 3–16 second video from a prompt with optional references: up to 15 images and 3 audio clips. Supports aspect ratio selection, audio generation and 540p–4k resolution.
Examples
Parameters
| Name | Type | Default | Constraints | Description |
|---|---|---|---|---|
| prompt *Prompt | textarea | — | ≤ 5000 chars | The positive prompt for the generation. |
| imagesImages | image_upload | — | image/* · 0–15 items | Reference image URL array (up to 15 images). |
| audiosAudios | audio_upload_group | — | audio/* · 0–3 items | Optional reference audio files for generation. Supports up to 3 audio references. |
| aspect_ratioAspect Ratio | select | 16:9 | 16:9 | 9:16 | 1:1 | 3:4 | 4:3 | The aspect ratio of the generated media. |
| resolutionResolution | select | 720p | 540p | 720p | 1080p | 2k | 4k | The resolution of the generated media. |
| durationDuration | slider | 5 | 3 ~ 16 · step 1 | The duration of the generated media in seconds. |
| generate_audioGenerate Audio | boolean | true | — | Whether to generate audio. |
| seedSeed | number | — | step 1 | The random seed to use for the generation. 0 or an omitted value uses a random seed. |
Output fields
| Field | Type | Description |
|---|---|---|
| videos | array<string> |
API
Call this model through one unified REST API. Get a key on the API Keys page.
cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/vidu/q4-preview/reference-to-video" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"input": {
"prompt": "Create a polished cinematic product video featuring the same matte black wireless headphones from the reference images on a clean studio set. Start with a slow rotating close-up that highlights the soft ear cushions and brushed metal details, then transition to a lifestyle shot of a young adult placing the headphones on while warm ambient light glows in the background. Keep the subject design fully consistent with the references, use smooth camera motion, realistic reflections, shallow depth of field, premium commercial styling, and subtle motion graphics for a modern brand ad.",
"images": [
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/794a150611fc.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/1612d26e4530.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/87a14c8b9623.jpeg"
],
"audios": [],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"generate_audio": true,
"seed": 123456
}
}'
# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
-H "Authorization: Bearer YOUR_API_KEY"Python
import time, requests
API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}
# 1) Submit
resp = requests.post(
"https://www.namifusion.com/api/v1/marketplace/run/vidu/q4-preview/reference-to-video",
headers=HEADERS,
json={
"input": {
"prompt": "Create a polished cinematic product video featuring the same matte black wireless headphones from the reference images on a clean studio set. Start with a slow rotating close-up that highlights the soft ear cushions and brushed metal details, then transition to a lifestyle shot of a young adult placing the headphones on while warm ambient light glows in the background. Keep the subject design fully consistent with the references, use smooth camera motion, realistic reflections, shallow depth of field, premium commercial styling, and subtle motion graphics for a modern brand ad.",
"images": [
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/794a150611fc.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/1612d26e4530.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/87a14c8b9623.jpeg"
],
"audios": [],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"generate_audio": True,
"seed": 123456
}
},
)
resp.raise_for_status() # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()
# 2) Poll until a terminal state (completed / failed / cancelled).
# This model is allowed up to 1800s server-side.
deadline = time.time() + 1860
while task.get("status") not in ("completed", "failed", "cancelled"):
if time.time() > deadline:
raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
time.sleep(3)
poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
poll.raise_for_status()
task = poll.json()
print(task["status"], task.get("output"))JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };
// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/vidu/q4-preview/reference-to-video", {
method: "POST",
headers: { ...HEADERS, "Content-Type": "application/json" },
body: JSON.stringify({
"input": {
"prompt": "Create a polished cinematic product video featuring the same matte black wireless headphones from the reference images on a clean studio set. Start with a slow rotating close-up that highlights the soft ear cushions and brushed metal details, then transition to a lifestyle shot of a young adult placing the headphones on while warm ambient light glows in the background. Keep the subject design fully consistent with the references, use smooth camera motion, realistic reflections, shallow depth of field, premium commercial styling, and subtle motion graphics for a modern brand ad.",
"images": [
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/794a150611fc.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/1612d26e4530.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/87a14c8b9623.jpeg"
],
"audios": [],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"generate_audio": true,
"seed": 123456
}
}),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();
// 2) Poll until a terminal state (completed / failed / cancelled).
// This model is allowed up to 1800s server-side.
const deadline = Date.now() + 1860 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
await new Promise((r) => setTimeout(r, 3000));
const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
task = await poll.json();
}
console.log(task.status, task.output);Documentation
Vidu Q4 Preview Reference to Video
vidu/q4-preview/reference-to-video
Generate a 3–16 second video from a prompt with optional references: up to 15 images and 3 audio clips. Supports aspect ratio selection, audio generation and 540p–4k resolution.
Parameters
| Parameter | Type | Required | Default | Limits / description |
|---|---|---|---|---|
prompt | string | Yes | — | max 5000 chars; The positive prompt for the generation. |
images | array | No | — | 0–15 URLs; Reference image URL array (up to 15 images). |
audios | array | No | — | 0–3 URLs; Optional reference audio files for generation. Supports up to 3 audio references. |
aspect_ratio | string | No | "16:9" | 16:9, 9:16, 1:1, 3:4, 4:3; The aspect ratio of the generated media. |
resolution | string | No | "720p" | 540p, 720p, 1080p, 2k, 4k; The resolution of the generated media. |
duration | integer | No | 5 | 3–16; step 1; The duration of the generated media in seconds. |
generate_audio | boolean | No | true | Whether to generate audio. |
seed | integer | No | — | The random seed to use for the generation. 0 or an omitted value uses a random seed. |
Only prompt is required. images accepts 0–15 image URLs; audios accepts 0–3 audio URLs. Both arrays can be omitted or empty. seed=0 or an omitted seed uses a random seed. aspect_ratio defaults to 16:9. This endpoint does not expose enable_prompt_expansion.
Pricing
| Resolution | USD / second | Credits / second | USD / 5 seconds |
|---|---|---|---|
| 540p | $0.045 | 4.5 | $0.225 |
| 720p | $0.095 | 9.5 | $0.475 |
| 1080p | $0.12 | 12 | $0.6 |
| 2k | $0.19 | 19 | $0.95 |
| 4k | $0.39 | 39 | $1.95 |
Total price = resolution rate × duration. duration accepts integers from 3 to 16. Defaults: 720p, 5 seconds, audio enabled. Default total: $0.475 = 47.5 credits. Only resolution and duration affect the price; audio generation, seed, and supported reference inputs or prompt expansion add no separate fee. USD 1 = 100 credits. List prices match WaveSpeed; account discounts are applied separately.
API
curl -X POST https://www.namifusion.com/api/v1/marketplace/run/vidu/q4-preview/reference-to-video \
-H "Authorization: Bearer $API_KEY" \
-H 'Content-Type: application/json' \
-d '{
"input": {
"prompt": "Create a polished cinematic product video featuring the same matte black wireless headphones from the reference images on a clean studio set. Start with a slow rotating close-up that highlights the soft ear cushions and brushed metal details, then transition to a lifestyle shot of a young adult placing the headphones on while warm ambient light glows in the background. Keep the subject design fully consistent with the references, use smooth camera motion, realistic reflections, shallow depth of field, premium commercial styling, and subtle motion graphics for a modern brand ad.",
"images": [
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/794a150611fc.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/1612d26e4530.jpeg",
"https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/09/87a14c8b9623.jpeg"
],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"generate_audio": true,
"seed": 123456
}
}'
curl 'https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID' \
-H "Authorization: Bearer $API_KEY"
Submit returns task_uuid. Poll until completed or failed. Successful output.videos is an array of video URLs.
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