# PixVerse V6 Transition API

> Video từ khung đầu đến khung cuối giữa hai hình ảnh, dài 1 đến 15 giây, với tám tỷ lệ khung hình

Nhận `prompt`, `first_image_url` và `end_image_url`, rồi tạo sinh chuyển tiếp giữa chúng. Thời lượng từ 1 đến 15 giây, độ phân giải từ 360p đến 1080p, và `aspect_ratio` gồm 16:9, 4:3, 1:1, 3:4, 9:16, 2:3, 3:2 và 21:9. Có thể bật tạo sinh nhiều đoạn clip, thiết lập sẵn phong cách, `seed` và âm thanh.

- Model id: `pixverse/v6/transition`
- Made by: PixVerse
- Category: Image to Video
- Output: video
- Price: from $0.025 / second (5 s ≈ $0.125) (cheapest run $0.125 (125 API credits))
- Run: `POST https://api.doitong.com/v1/run/pixverse/v6/transition`
- Quote: `POST https://api.doitong.com/v1/quote/pixverse/v6/transition`
- Docs page: https://doitong.com/vi/developers/models/pixverse/v6/transition

## Pricing

Price: **from $0.025 / second (5 s ≈ $0.125)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 15).

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `generate_audio_switch` = true and `resolution` = 360p: $0.035 (35 API credits) / second
- When `resolution` = 360p: $0.025 (25 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 540p: $0.045 (45 API credits) / second
- When `resolution` = 540p: $0.035 (35 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 720p: $0.06 (60 API credits) / second
- When `resolution` = 720p: $0.045 (45 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 1080p: $0.115 (115 API credits) / second
- When `resolution` = 1080p: $0.09 (90 API credits) / second

The full example input below costs $0.225 = 225 API credits (5 s × 45 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/pixverse/v6/transition` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  |  | Hướng dẫn chuyển cảnh với giới hạn độ dài tính theo byte: văn bản ngắn về mặt hiển thị vẫn có thể vượt giới hạn vì emoji, chữ có dấu và ký tự ngoài Latin chiếm nhiều byte. Tối đa 2048 byte được đo bằng UTF-8, không phải số ký tự. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `16:9`, `4:3`, `1:1`, `3:4`, `9:16`, `2:3`, `3:2`, `21:9` | Tỷ lệ khung hình của video đầu ra. |
| `resolution` |  | enum (string) | no | `720p` | `360p`, `540p`, `720p`, `1080p` | Độ phân giải của video đầu ra. |
| `duration` |  | integer | no | `5` | 1 – 15 | Độ dài tính bằng giây của video cần tạo; với v6, phạm vi được hỗ trợ là 1–15 giây. |
| `negative_prompt` |  | string | no | `` |  | Lời nhắc tạo sinh phủ định với giới hạn độ dài tính theo byte: văn bản ngắn về mặt hiển thị vẫn có thể vượt giới hạn vì emoji, chữ có dấu và ký tự ngoài Latin chiếm nhiều byte. Tối đa 2048 byte được đo bằng UTF-8, không phải số ký tự. |
| `style` |  | enum (string) \| null | no |  | `anime`, `3d_animation`, `clay`, `comic`, `cyberpunk` | Phong cách áp dụng cho video được tạo. |
| `seed` |  | integer \| null | no |  |  | Seed để tạo video có thể lặp lại. Để tái tạo chính xác ở mỗi lần chạy, phải giữ nguyên phiên bản mô hình, lời nhắc và seed. |
| `generate_audio_switch` | `generate_audio` | boolean | no | `false` |  | Bật/tắt tạo âm thanh cho nhạc nền, hiệu ứng âm thanh và lời thoại. |
| `generate_multi_clip_switch` |  | boolean | no | `false` |  | Bật/tắt tạo đa clip, cho phép thay đổi máy quay động. |
| `thinking_type` |  | enum (string) \| null | no |  | `enabled`, `disabled`, `auto` | Cài đặt tối ưu hóa lời nhắc: 'enabled' áp dụng tối ưu hóa, 'disabled' tắt tối ưu hóa và 'auto' để mô hình tự quyết định. |
| `first_image_url` | `image` | string (image URL) | yes |  |  | URL hình ảnh cung cấp khung hình ban đầu. |
| `end_image_url` | `end_image` | string (image URL) | yes |  |  | URL hình ảnh cho khung hình cuối. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Có thể nới lỏng việc kiểm duyệt bằng cách đặt thành false, nếu người gọi được cấp quyền. |

File parameters (`image`, `end_image`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "end_image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
  "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/pixverse/v6/transition?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/pixverse/v6/transition?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/pixverse/v6/transition", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "pixverse/v6/transition",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "pixverse/v6/transition",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 225,
    "usd": "0.225",
    "charged": 225,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "first_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    "end_image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Video do mô hình tạo ra. |

## Related models

- [PixVerse V6 Text To Video](https://doitong.com/developers/models/pixverse/v6/text-to-video.md) (`pixverse/v6/text-to-video`): from $0.025 / second
- [PixVerse V6 Image To Video](https://doitong.com/developers/models/pixverse/v6/image-to-video.md) (`pixverse/v6/image-to-video`): from $0.025 / second
- [PixVerse V6 Extend](https://doitong.com/developers/models/pixverse/v6/extend.md) (`pixverse/v6/extend`): from $0.025 / second
- [FLUX 3 Max Image to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/image-to-video.md) (`blackforestlabs/flux-3-max/image-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Image to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/image-to-video.md) (`xai/grok-imagine-video/v1.5/image-to-video`): from $0.082 / second
- [Kling 3.0 Pro Image to Video](https://doitong.com/developers/models/kling-video/v3/pro/image-to-video.md) (`kling-video/v3/pro/image-to-video`): from $0.112 / second
- [LTX 2.5 Pro Image to Video](https://doitong.com/developers/models/lightricks/ltx-2.5/image-to-video/pro.md) (`lightricks/ltx-2.5/image-to-video/pro`): from $0.12 / second
- [MiniMax H3 Image to Video](https://doitong.com/developers/models/minimax/h3/image-to-video.md) (`minimax/h3/image-to-video`): from $0.05 / second

## Links

- HTML page: https://doitong.com/developers/models/pixverse/v6/transition
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=pixverse/v6/transition
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/pixverse/v6/transition