> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apimart.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Wan3.0 Video Generation
> - Alibaba Cloud Wanxiang 3.0 all-in-one reference video model
- Text-to-video / first frame / first+last frame / multi-modal reference / file or link reference
- Resolution 480P / 720P / 1080P, duration 2–30 seconds, or `-1` for model-chosen length
- Supports images, video, audio, documents, and public web pages as references
```bash cURL theme={null}
curl --request POST \
--url https://api.apimart.ai/v1/videos/generations \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data '{
"model": "wan3.0-video",
"prompt": "A kitten runs across a moonlit rooftop, neon lights of the city flicker in the distance, cinematic quality, smooth camera move.",
"resolution": "720P",
"size": "16:9",
"duration": 5
}'
```
```python Python theme={null}
import requests
url = "https://api.apimart.ai/v1/videos/generations"
payload = {
"model": "wan3.0-video",
"prompt": "A kitten runs across a moonlit rooftop, neon lights of the city flicker in the distance, cinematic quality, smooth camera move.",
"resolution": "720P",
"size": "16:9",
"duration": 5,
}
headers = {
"Authorization": "Bearer ",
"Content-Type": "application/json",
}
response = requests.post(url, json=payload, headers=headers)
print(response.json())
```
```javascript JavaScript theme={null}
const url = "https://api.apimart.ai/v1/videos/generations";
const payload = {
model: "wan3.0-video",
prompt: "A kitten runs across a moonlit rooftop, neon lights of the city flicker in the distance, cinematic quality, smooth camera move.",
resolution: "720P",
size: "16:9",
duration: 5,
};
const headers = {
Authorization: "Bearer ",
"Content-Type": "application/json",
};
fetch(url, {
method: "POST",
headers: headers,
body: JSON.stringify(payload),
})
.then((response) => response.json())
.then((data) => console.log(data))
.catch((error) => console.error("Error:", error));
```
```go Go theme={null}
package main
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
func main() {
url := "https://api.apimart.ai/v1/videos/generations"
payload := map[string]interface{}{
"model": "wan3.0-video",
"prompt": "A kitten runs across a moonlit rooftop",
"resolution": "720P",
"size": "16:9",
"duration": 5,
}
jsonData, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
req.Header.Set("Authorization", "Bearer ")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(string(body))
}
```
```json 200 theme={null}
{
"code": 200,
"data": [
{
"status": "submitted",
"task_id": "task_01J9HA7JPQ9A0Z6JZ3V8M9W6PZ"
}
]
}
```
```json 400 theme={null}
{
"error": {
"code": 400,
"message": "Invalid request parameters",
"type": "invalid_request_error"
}
}
```
```json 401 theme={null}
{
"error": {
"code": 401,
"message": "Authentication failed, please check your API key",
"type": "authentication_error"
}
}
```
```json 402 theme={null}
{
"error": {
"code": 402,
"message": "Insufficient account balance, please top up and try again",
"type": "payment_required"
}
}
```
```json 429 theme={null}
{
"error": {
"code": 429,
"message": "Too many requests, please try again later",
"type": "rate_limit_error"
}
}
```
## Authorization
All endpoints require Bearer Token authentication
Get your API Key from the [API Key Management Page](https://apimart.ai/keys):
```
Authorization: Bearer YOUR_API_KEY
```
## Generation Modes
Model name is fixed to **`wan3.0-video`**. Modes are selected by request fields:
| Mode | Typical inputs |
| --------------------- | ---------------------------------------------------------------------------------- |
| Text-to-video | `prompt` only |
| First-frame video | one item in `image_urls` (frame family) |
| First + last frame | two items in `image_urls`, or `image_with_roles` with `first_frame` / `last_frame` |
| Reference video | reference images / videos / audio; prompt may use “图1 / 视频1 / 音频1” style labels |
| File / page reference | `file_url` or `link_url` (`prompt` optional) |
## Request Parameters
### Basics
Fixed value: `wan3.0-video`
Text description. **Required unless** media fields are provided (at least one of prompt or media).
* Max **20,000** characters; overflow is truncated automatically (no error)
* In reference mode, use “图N / 视频N / 音频N” to address assets; indices follow order **within each media type**
Output resolution (case-insensitive)
* `480P`
* `720P`
* `1080P` (**default**, highest price)
Omitting `resolution` bills at **1080P**. Pass `480P` or `720P` explicitly when cost matters.
Aspect ratio. `aspect_ratio` is also accepted.
* `adaptive` (default)
* `16:9` / `4:3` / `1:1` / `3:4` / `9:16`
Duration in seconds:
* `2`–`30`: fixed output length (default `5`)
* `-1`: **model decides** the duration
With reference video input, total input video duration + output duration must be ≤ 30 seconds. When `duration` is `-1`, the model chooses the length, which must still satisfy this constraint.
Whether the output includes an audio track. Default `true`. **Price is the same with or without audio.**
Random seed in `[0, 2147483647]`
Whether to add a watermark. Default `false`
How bare `image_urls` are classified:
* `frame` — first/last frame family
* `reference` — reference family
If omitted, classification is automatic (see mutual exclusion rules).
### Media inputs
Image URL array. Role assignment follows mutual exclusion rules.
Public URL or Base64 (`data:image/png;base64,...`).
Images with explicit roles. Each item:
* `url`: image address
* `role`: `first_frame` / `last_frame` / `reference_image` (common aliases accepted)
Reference videos, up to **5** clips; each 1–15s, **total ≤ 15s**
Reference audio, up to **5** clips; each 1–15s, **total ≤ 15s**
Single reference audio (single-value form of `audio_urls`)
Reference document URL, at most **1**. **Cannot be combined with `link_url`.**
Formats include docx / doc / xlsx / xls / pptx / ppt / pdf / txt / key / pages / numbers / md, ≤100MB, ≤50 pages.
Public web page URL, at most **1**. Login-free pages only. **Cannot be combined with `file_url`.**
## Mutual Exclusion of Media Families
Media belongs to one of two families and **must not be mixed** (validated before submit → 400, no task, no charge):
| Family | Members | Meaning |
| -------------------- | ----------------------------------------------------------------------- | -------------------------------------- |
| **Frame family** | `first_frame`, `last_frame` | Strict first / last frame of the video |
| **Reference family** | `reference_image`, `reference_video`, `reference_audio`, `file`, `link` | Model interprets content freely |
### How bare `image_urls` are assigned
1. If `generation_type` is set → use it (`frame` / `reference`)
2. Else if the request already has reference-family inputs (`video_urls` / `audio_urls` / `audio_url` / `file_url` / `link_url`) → treat as `reference_image`
3. Else → frame family: first item `first_frame`, second `last_frame` (same as `wan2.7`)
Use `image_with_roles` when you need explicit control.
### Media limits and formats
| Type | Limits |
| ------------------ | --------------------------------------------------------------------------------- |
| First / last frame | ≤ 1 each |
| Reference images | ≤ 10 |
| Reference video | ≤ 5 clips, 1–15s each, total ≤15s; mp4/mov; edge 240–4096 px, aspect ≤8:1, ≤100MB |
| Reference audio | ≤ 5 clips, 1–15s each, total ≤15s; wav/mp3; ≤15MB |
| Images | JPEG/JPG/PNG (no alpha) / BMP / WEBP; edge 240–8000 px, aspect ≤8:1, ≤20MB |
| Documents | ≤100MB, ≤50 pages |
| Web pages | Public, login-free URLs |
## Request Examples
### Text-to-video
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "A kitten runs across a moonlit rooftop, neon lights of the city flicker in the distance, cinematic quality, smooth camera move.",
"resolution": "720P",
"size": "16:9",
"duration": 5
}
```
### First-frame video
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "The person in the frame starts freestyle rapping, camera slowly pushes in",
"image_urls": ["https://example.com/first.png"],
"resolution": "720P",
"duration": 5
}
```
### First + last frame
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "Smile gradually becomes laughter, background light shifts from cool to warm",
"image_urls": [
"https://example.com/first.png",
"https://example.com/last.jpg"
],
"duration": 5
}
```
Or with `image_with_roles`:
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "Smile gradually becomes laughter",
"image_with_roles": [
{"url": "https://example.com/first.png", "role": "first_frame"},
{"url": "https://example.com/last.jpg", "role": "last_frame"}
],
"duration": 5
}
```
### Multi-modal reference
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "视频1抱着图1，在图3的椅子上弹奏一支舒缓的乡村民谣，并说道：\"今天的阳光真好。\"",
"generation_type": "reference",
"image_urls": [
"https://example.com/object1.jpg",
"https://example.com/object2.png",
"https://example.com/chair.png"
],
"video_urls": ["https://example.com/role.mp4"],
"resolution": "480P",
"duration": 5
}
```
> With `video_urls` present, bare `image_urls` auto-classify as reference images; setting `generation_type: "reference"` is clearer.
### File reference video
`prompt` may be omitted; generation is driven by the document:
```json theme={null}
{
"model": "wan3.0-video",
"file_url": "https://example.com/glass.pptx",
"resolution": "480P",
"duration": 10
}
```
### Web page reference video
```json theme={null}
{
"model": "wan3.0-video",
"prompt": "Turn this article into a short educational video",
"link_url": "https://example.com/article/123",
"duration": 15
}
```
## Billing
**Per second × resolution** (aligned with official list price). Audio on/off does not change price:
| Resolution | Unit price | 5s | 30s |
| ---------- | ------------- | ----- | ------ |
| 480P | **¥0.30** / s | ¥1.50 | ¥9.00 |
| 720P | **¥0.60** / s | ¥3.00 | ¥18.00 |
| 1080P | **¥1.20** / s | ¥6.00 | ¥36.00 |
* Default is **1080P** (most expensive); pass `480P` / `720P` when cost-sensitive
* Billable seconds: for `2`–`30`, use the requested `duration`; for `-1`, use the **actual** output seconds
* `audio: true/false` does **not** affect price
## Limits and Notes
| Item | Notes |
| ---------------- | --------------------------------------------------------------- |
| Duration | Integer `2`–`30`, or `-1` (model decides length) |
| With video input | Input video total duration + output duration ≤ 30s |
| Latency | Typically 1–5 minutes; longer for long clips |
| Result URL | Mirrored to the platform CDN after success for long-term access |
| Prompt | ≤20,000 characters; overflow truncated |
## Common Errors
All are **sync 400** (no task, no charge):
| Case | What to do |
| ----------------------------------- | --------------------------------------------------------------------------- |
| Mixing frame and reference families | Pick one family via `generation_type`, or set roles with `image_with_roles` |
| Both `file_url` and `link_url` | Choose one |
| Invalid `duration` | Only `2`–`30` or `-1` |
| Unsupported resolution (e.g. 4K) | Only `480P` / `720P` / `1080P` |
| More than 10 reference images | Reduce to ≤10 |
| Empty `prompt` and empty media | Provide at least one |
## Response
Status code; 200 on success
Response data array
Task status; `submitted` on create
Task ID for polling
**Query results**
Video generation is async. Poll [Get Task Status](/en/api-reference/tasks/status) or `GET /v1/videos/generations/{task_id}`.
Recommended interval 5–10 seconds; generation typically takes 1–5 minutes. On success, use URLs in `result.videos`.