Check Vidu Q4 availability, inputs, parameters, file requirements, credit pricing, and request examples for Rivya Public API v1. Model ID: vidu-q4.

Available via APIAPI statusVideo

API model ID

vidu-q4

Inputs

file

Files API

Required for reference modes

Credit pricing

Credit rate: 7.2–62.4 per second of output The final cost is rounded up to whole credits.

Capability

Video

Billing

METERED

Prompt limit

20000 characters

Request fields

Set model at the top level. Put model-specific controls and reference inputs in params, using the format documented for this model.

Key	Type	Required	Default	Description
model	string	Yes	vidu-q4	Set model to vidu-q4.
prompt	string	Yes	-	Maximum 20000 characters for this model.
params	object	Yes	-	The model-specific params object. Use the documented keys and reference-file format for this model.
client_request_id	string	No	-	Optional ID for tracing this request in your system. It does not replace Idempotency-Key.

Model parameters

Key	Type	Required	Default	Range	Options	Description
resolution	select	No	720p	-	540p, 720p, 1080p, 2k, 4k	Resolution
duration	number	No	5	min 3 / max 16 / step 1	-	Duration
audio	select	No	true	-	true, false	Generate audio

Upload policy

Upload reference files through Files API first. Keep the original URLs, verified metadata, and tokens. Follow this model's request example: some models use params.referenceMediaItems, while others use different fields.

Reference rule

Reference image: Upload one JPEG, PNG, or WebP starting image, no larger than 50 MB.

Max files

Accepted file kinds

image

Duration token

When duration verification is required, use duration_token from /api/v1/files as durationToken in the request. Keep any additional signed metadata this model requires.

kind	Max size	MIME types
image	48 MB	image/jpeg, image/png, image/webp

No runnable Public API example is shown for this model.

Reference-file request

{
  "model": "vidu-q4",
  "params": {
    "resolution": "720p",
    "duration": 5,
    "audio": "true",
    "referenceMediaItems": [
      {
        "url": "https://cdn.example.com/reference-image.png",
        "kind": "image",
        "name": "reference-image.png",
        "mimeType": "image/png"
      }
    ]
  }
}

Example response

An accepted generation request returns a task ID. Poll the status endpoint until the task succeeds or fails. A status request failure does not mean generation failed.

{
  "id": "task_vidu_q4_example",
  "status": "queued",
  "model": "vidu-q4",
  "reserved_credits": 76,
  "final_credits": 0,
  "settlement_status": "RESERVED",
  "created_at": "2026-05-11T00:00:00.000Z",
  "updated_at": "2026-05-11T00:00:00.000Z",
  "result": null,
  "error": null
}

Common errors

validation_failed, insufficient_credits, idempotency_conflict, rate_limited, not_found

Some modes require Files API reference uploads.

Vidu Q4 API reference