# Vidu Q4 Preview Image-to-Video — Atlas Cloud API

> Vidu's latest flagship video model animates a single image into a 3-16 second clip with native synchronized audio, automatic scene transitions, and output from 540p up to 4K.

This is the machine-readable API reference for **Vidu Q4 Preview Image-to-Video** on Atlas Cloud,
a unified API platform for 400+ AI models across text, image, video, audio and 3D.

- **Model ID**: `vidu/q4-preview/image-to-video`
- **Built by**: Vidu
- **Modality**: Video
- **Model page**: https://www.atlascloud.ai/models/vidu/q4-preview/image-to-video
- **API key**: https://www.atlascloud.ai/console/api-keys
- **Docs**: https://www.atlascloud.ai/docs

## Pricing on Atlas Cloud

- $0.032 per second of generated video
- Pay-as-you-go. No minimum spend, no subscription required.

> **These are the authoritative Atlas Cloud rates for this model.** Any price that
> appears in the vendor description further down refers to a different platform or
> a different model variant and does not apply here.

## Use this model from an AI agent

Atlas Cloud ships three first-party integration surfaces. All three authenticate
with the same API key via the `ATLASCLOUD_API_KEY` environment variable.

### MCP server

The official MCP server (`atlascloud-mcp`) exposes this model to any
MCP-compatible host — Claude Code, OpenAI Codex, Cursor, Gemini CLI, Goose,
Claude Desktop. One-line install:

```bash
# Claude Code
claude mcp add atlascloud -- npx -y atlascloud-mcp

# OpenAI Codex CLI
codex mcp add atlascloud -- npx -y atlascloud-mcp

# Gemini CLI
gemini mcp add atlascloud -- npx -y atlascloud-mcp

export ATLASCLOUD_API_KEY="your-api-key"
```

Then ask in plain English; the agent calls `atlas_generate_video` with `model: "vidu/q4-preview/image-to-video"`.
The server fetches each model's schema and validates parameters before submitting,
so invalid requests fail fast without spending credits.

MCP docs: https://www.atlascloud.ai/docs/mcp-server

### Agent Skills

`atlas-cloud-skills` is a portable skill package (API reference, code templates in
Python / Node.js / cURL, model IDs with pricing) for Claude Code, Cursor, Codex and
12+ other agents:

```bash
npx skills add AtlasCloudAI/atlas-cloud-skills
export ATLASCLOUD_API_KEY="your-api-key"
```

Skills docs: https://www.atlascloud.ai/docs/skills

### CLI

The `atlas` binary runs Atlas Cloud from a terminal or CI script. Async media jobs
are polled and downloaded automatically (use `--no-download` when a script only
needs the output URLs):

```bash
# Install (Homebrew, npm, or shell installer)
brew install AtlasCloudAI/tap/atlascloud
# npm install -g atlascloud-cli
# curl -fsSL https://raw.githubusercontent.com/AtlasCloudAI/cli/main/install.sh | sh

atlas auth login
atlas generate video vidu/q4-preview/image-to-video -p "Your prompt here"
```

CLI docs: https://www.atlascloud.ai/docs/cli

## HTTP API reference

- **Submit endpoint (POST)**: `https://api.atlascloud.ai/api/v1/model/generateVideo` — start an async generation; returns a `prediction_id`
- **Poll endpoint (GET)**: `https://api.atlascloud.ai/api/v1/model/prediction/{prediction_id}` — poll this until the prediction finishes
- **Model ID**: `vidu/q4-preview/image-to-video`


## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:

- **`model`** (`string`, _required_):
  Model name.
  - Default: `"vidu/q4-preview/image-to-video"`
  - Options: "vidu/q4-preview/image-to-video"

- **`prompt`** (`string`, _optional_):
  Text description of the motion, camera movement and sound. Up to 20,000 characters. Optional.
  - Default: `"The girl slowly turns toward the camera and smiles as wind moves through her hair, soft cinematic lighting."`

- **`image`** (`string`, _required_):
  Image to animate, as a URL or Base64. Formats: PNG, JPEG, JPG, WebP. Max 50MB.

- **`duration`** (`integer`, _optional_):
  Length of the generated video in seconds, 3 to 16.
  - Default: `5`
  - Min: 3
  - Max: 16

- **`resolution`** (`string`, _optional_):
  Output resolution. Billed per second at the selected tier.
  - Default: `"720p"`
  - Options: "540p", "720p", "1080p", "2k", "4k"

- **`generate_audio`** (`boolean`, _optional_):
  Generate synchronized audio (dialogue, sound effects, ambience) together with the video.
  - Default: `true`

- **`enable_prompt_expansion`** (`boolean`, _optional_):
  Let the model rewrite and enrich the prompt before generation.
  - Default: `false`

- **`seed`** (`integer`, _optional_):
  Random seed for reproducible results. Set -1 for a random seed.
  - Default: `-1`



**Required Parameters Example**:

```json
{
  "model": "vidu/q4-preview/image-to-video",
  "image": ""
}
```


**Full Example**:

```json
{
  "model": "vidu/q4-preview/image-to-video",
  "prompt": "The girl slowly turns toward the camera and smiles as wind moves through her hair, soft cinematic lighting.",
  "image": "",
  "duration": 5,
  "resolution": "720p",
  "generate_audio": true,
  "enable_prompt_expansion": false,
  "seed": -1
}
```


### Output Schema

The API returns the following output format:


- **`id`** (`string`, _optional_):
  Unique identifier for the prediction, the ID of the prediction to get.

- **`urls`** (`object`, _optional_):
  Object containing related API endpoints.

- **`model`** (`string`, _optional_):
  Model ID used for the prediction.

- **`status`** (`string`, _optional_):
  Status of the task: created, processing, completed, or failed.

- **`outputs`** (`array[string]`, _optional_):
  Array of URLs to the generated content (empty when status is not completed).

- **`created_at`** (`string`, _optional_):
  ISO timestamp of when the request was created.



**Example Response**:

```json
{
  "id": "",
  "urls": {},
  "model": "",
  "status": "",
  "outputs": [
    ""
  ],
  "created_at": ""
}
```


## Usage Examples

### cURL

```bash
# Step 1: Start generation (async)
curl -X POST "https://api.atlascloud.ai/api/v1/model/generateVideo" \
  -H "Authorization: Bearer $ATLASCLOUD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "vidu/q4-preview/image-to-video",
  "prompt": "The girl slowly turns toward the camera and smiles as wind moves through her hair, soft cinematic lighting.",
  "image": "",
  "duration": 5,
  "resolution": "720p",
  "generate_audio": true,
  "enable_prompt_expansion": false,
  "seed": -1
}'

# Response will contain: {"code": 200, "data": {"id": "prediction_id", "status": "processing"}}

# Step 2: Poll for result (replace {prediction_id} with the id returned above)
curl -X GET "https://api.atlascloud.ai/api/v1/model/prediction/{prediction_id}" \
  -H "Authorization: Bearer $ATLASCLOUD_API_KEY"

# Keep polling until status is "completed", "succeeded" or "failed"
# When completed, outputs will contain the generated content URL(s)
```

## Additional Resources

### Documentation

- [Model Playground](https://www.atlascloud.ai/models/vidu/q4-preview/image-to-video)

## About this model

_Vendor-supplied description. Any pricing or endpoint mentioned below refers to_
_other platforms — use the Atlas Cloud values above._

### Vidu Q4 Preview Image-to-Video

**Vidu Q4 Preview Image-to-Video** is Vidu's latest flagship video model. Give it one image and an optional prompt, and it animates the image into a 3–16 second clip with synchronized audio, automatic scene transitions, and output from 540p up to 4K.

#### Why Choose This?

- **Latest Vidu flagship.** Q4 Preview is Vidu's newest generation model, with stronger motion, subject fidelity, and cinematic camera work.
- **Native audio.** Dialogue, sound effects, and ambience are generated together with the video. Audio is on by default.
- **Up to 4K.** Five resolution tiers from 540p to 4K, so you can draft cheaply and render the final at full quality.
- **Long takes.** Any duration from 3 to 16 seconds, set in 1-second steps.
- **Prompt optional.** Leave the prompt empty and the model infers natural motion from the image, or turn on prompt expansion to have your prompt enriched automatically.

#### Parameters

| Parameter | Required | Description |
| --- | --- | --- |
| model | Yes | `vidu/q4-preview/image-to-video` |
| image | Yes | Image to animate, as a URL or Base64. PNG / JPEG / JPG / WebP, max 50MB. |
| prompt | No | Motion, camera, and sound description, up to 20,000 characters. |
| duration | No | Video length in seconds, integer 3–16. Default `5`. |
| resolution | No | `540p`, `720p` (default), `1080p`, `2k`, `4k`. |
| generate_audio | No | Generate synchronized audio. Default `true`. |
| enable_prompt_expansion | No | Let the model rewrite and enrich the prompt. Default `false`. |
| seed | No | Random seed. `-1` (default) picks a random seed. |

#### How to Use

_(Description truncated. Full text on the model page.)_

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Atlas Cloud — one API for 400+ AI models. Model page: https://www.atlascloud.ai/models/vidu/q4-preview/image-to-video · Docs: https://www.atlascloud.ai/docs