# Live Portrait API

> ᡩᡠᠯᡝᠮᡝ ᠸᡳᡩᡝᠣ ᡩᡝ ᠪᡠᠴᡳᠨᡳ ᡤᡳᠰᡠᠨ ᡳ ᠵᡠᠰᡝ ᠠᠪᡠᠮᡝ ᡤᡡᠯᡳᠨ ᡳ ᠨᠠᠯᡥᠠᠨ ᡳ ᠠᠷᠠᠮᡳ ᡤᡳᠰᡠᠨ ᡳ ᡤᡠᠮᡠᠯᡝᠮᡝ ᠪᡝᠴᡝᠨ᠉

ᡝᠮᡠ ᠵᡠᠯᡝ ᡤᠠᡩᠠᠨ ᡩᡝᡵᡝ ᡥᡡᠯᠠᠨ ᡩᡝ ᡝᠮᡤᡳ ᠰᡠᠨᡤᠠ ᡩᡝᡵᡝ ᡥᠠᠯᠠᠨ ᡩᠠᠮᠪᡳ ᠪᡝᠶᡝᠮᡝᠩᡤᡝ ᠰᡠᠨᡤᠠ ᠪᡠᠶᡝᠮᡝᠮᡝ. `video_url` ᡠᠯᡥᡝ `image_url` ᡠᠯᡥᡝ ᡠᠮᡝᠰᡳ ᠵᡝᠨᡝᠩᡤᡝ ᡤᠠᠯᠠ ᠵᡝᠯᡤᡳᠶᡝᠯᡝᠮᡝ ᡤᡳᠰᡠᠨᠰᡳ ᠨᡳᡵᡠᡤᠠᠨ᠂ ᠵᡝᠯᠠᠨ᠂ ᠸᡝᡳᠯᡝᠮᡝ᠂ ᡳᠯᡥᠠᠮᡝ᠂ ᡩᠠᠮᡠ ᠮᡠᠶᠠᡥᡡᠨ (aaa, eee, woo)᠂ ᠵᠠᠯᡳᠨ ᠮᠠᠩᡤᡳ ᡠᠯᡥᡝ ᡤᠠᠯᠠᠨ ᡩᡝᡵᡝ ᡤᡝᠮᡠ ᠵᡝᠯᡳᠨ ᠵᡝᠯᡝᠨ ᡩᠠᠮᡠᠨ ᡠᠯᡥᡝ ᡠᠯᡥᡝᠨ ᠵᡝᠯᡤᡳᠶᡝᠯᡝᠮᡝ ᠣᠯᡥᠣ. ᡠᠯᡥᡝ ᠵᡝᠯᡝᠨ ᡠᠯᡥᡝᠨ ᡤᡝᠮᡠ `flag_do_crop` ᠠᠮᠠᠯᠠ `flag_pasteback` ᠰᡳ ᠣᠯᡥᠣᠮᡝ᠂ `dsize` ᠪᡠᠶᡝᠮᡝᠩᡤᡝ ᠵᠠᠯᠠᠨ ᠵᠠᡤᠠᠨ ᠵᡝᠯᡝᠨ ᠪᡝ ᠵᡝᠯᡝᠮᡝ (ᠵᡠᠯᡝ 512).

- Model id: `live-portrait`
- Made by: Kuaishou
- Category: Lipsync & Avatars
- Output: video
- Charged by usage (up to $4.50 per run, typical $0.045; the rest of the hold is refunded): $0.00125 / second of processing time (cheapest run $0.045 (45 API credits))
- Run: `POST https://api.doitong.com/v1/run/live-portrait`
- Quote: `POST https://api.doitong.com/v1/quote/live-portrait`
- Docs page: https://doitong.com/mnc/developers/models/live-portrait

## Pricing

Price: **$0.00125 / second of processing time**. Charged by actual usage at $0.00125 / second of processing time: up to $4.50 per run (the quote gives the maximum for your input), the rest is refunded automatically after the run. A typical run costs $0.045.

The full example input below holds up to $4.50 = 4500 API credits (up to 3600 s of processing time × $0.00125) when it starts; a typical run costs $0.045 (45 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). This model is charged by usage: `POST https://api.doitong.com/v1/quote/live-portrait` with the same JSON body returns the most the run can cost for that input (`credits`, debited when the run starts); after the run you pay the usage the model reports and the rest is refunded automatically. An input whose maximum would exceed the per-run limit is refused with 422. 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 |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | ᠠᠮᡤᠠᠨ ᡳ ᠵᠠᠯᠠᠨ ᠰᡠᠨᡤᠠ, ᠵᠠᠯᠠᠨ ᡩᡝ ᡤᡳᠰᡠᠨ ᡳ ᠵᠠᠰᠠᠯᠠᠨ ᡩᡝ ᠠᠵᡳᠯᠠᠮᠪᡳ᠉ |
| `image_url` | `image` | string (image URL) | yes |  |  | ᠵᠠᠯᠠᠨ ᠪᡝ ᠪᡠᠶᡝᠮᡝᠮᠪᡳ ᠰᡝᠮᡝ ᡤᠠᠳᠠᠨ ᡳ URL᠉ |
| `blink` |  | number | no | `0` | -30 – 30 | ᠨᡳᡵᡠᡤᠠᠨ ᡳ ᠵᠠᠩᡤᠠᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `eyebrow` |  | number | no | `0` | -30 – 30 | ᠵᡠᠯᡤᠠᠨ ᡳ ᠵᠠᠯᠠᠨ ᠣᠯᡥᠣᠨ ᠠᠮᠠᠯᡤᠠ ᠣᠯᡥᠣᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `wink` |  | number | no | `0` | 0 – 25 | ᠨᡳᡵᡠᠣᡥᠣᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `pupil_x` |  | number | no | `0` | -45 – 45 | ᠨᡳᡵᡠᠣᡥᠣᠨ ᡳ ᠵᠠᠯᠠᠨ ᡩᡝᡵᡤᡳ ᠵᠠᠪᡠᡥᠠᠨᡳ ᠶᠠᠰᠠᠨ᠉ |
| `pupil_y` |  | number | no | `0` | -45 – 45 | ᠨᡳᡵᡠᠣᡥᠣᠨ ᡳ ᠵᠠᠯᠠᠨ ᡩᡝᠯᡝ ᠵᠠᠪᡠᡥᠠᠨᡳ ᠶᠠᠰᠠᠨ᠉ |
| `aaa` |  | number | no | `0` | -200 – 200 | 'aaa' ᠵᠠᠩᡤᠠᠨ ᡩᡝ ᠠᠮᡤᠠᠯᠠᠨ ᠠᠮᠠᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `eee` |  | number | no | `0` | -40 – 40 | 'eee' ᠵᠠᠩᡤᠠᠨ ᡩᡝ ᠠᠮᠠᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `woo` |  | number | no | `0` | -100 – 100 | 'woo' ᠵᠠᠩᡤᠠᠨ ᡩᡝ ᠠᠮᠠᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `smile` |  | number | no | `0` | -2 – 2 | ᠵᡠᠯᡤᠠᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `flag_lip_zero` |  | boolean | no | `true` |  | ᠪᡠᠶᡝᠮᡝ ᡳ ᠠᠮᠠᠯᠠᠨ ᠵᠠᠯᠠᠨ, flag_eye_retargeting ᠠᠮᠠᠯᡤᠠ flag_lip_retargeting ᠵᠠᠯᠠᠨ False ᠪᡝ ᠰᡝᠯᡤᡳᠶᡝᠮᠪᡳ᠉ |
| `rotate_pitch` |  | number | no | `0` | -45 – 45 | ᠮᡠᠰᡝ ᡳ pitch ᠵᠠᠮᡤᠠᠨ ᡩᡝ ᠪᡝᠶᡝᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `rotate_yaw` |  | number | no | `0` | -45 – 45 | ᠮᡠᠰᡝ ᡳ yaw ᠵᠠᠮᡤᠠᠨ ᡩᡝ ᠪᡝᠶᡝᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `rotate_roll` |  | number | no | `0` | -45 – 45 | ᠮᡠᠰᡝ ᡳ roll ᠵᠠᠮᡤᠠᠨ ᡩᡝ ᠪᡝᠶᡝᠨ ᡳ ᠵᠠᠯᠠᠨ᠉ |
| `flag_eye_retargeting` |  | boolean | no | `false` |  | ᠨᡳᡵᡠᠣᡥᠣᠨ ᡳ ᠵᠠᠰᠠᠨ ᡳ ᠲᠣᡤᠣᠨ᠉ |
| `flag_lip_retargeting` |  | boolean | no | `false` |  | ᠠᠮᠠᠨ ᡳ ᠵᠠᠰᠠᠨ ᡳ ᠲᠣᡤᠣᠨ᠉ |
| `flag_stitching` |  | boolean | no | `true` |  | ᠵᠠᠯᠠᠯᠠᠨ ᡳ ᠲᠣᡤᠣᠨ; ᠪᡝ ᠪᡠᠶᡝᠮᡝ ᠰᠠᠨᠠᠮᠪᡳ᠉ |
| `flag_relative` |  | boolean | no | `true` |  | ᠰᠣᠯᡤᠣᠯᠣᠨ ᡳ ᠲᠣᡤᠣᠨ᠉ |
| `flag_pasteback` |  | boolean | no | `true` |  | ᠪᡠᠶᡝᠮᡝ ᠮᡠᠰᡝᠯᡝᠨ ᠪᡝ ᠵᠠᠯᠠᠨ ᡳ ᠵᠠᠯᠠᠨ ᡩᡝ ᠵᠠᠯᠠᠯᠠᠮᠪᡳ, ᡤᠠᠳᠠᠨ ᡳ ᠮᡠᠰᡝᠯᡝᠨᡳ ᠵᠠᠯᠠᠨ ᡩᡝ ᠵᠠᠯᠠᠯᠠᠨ᠉ |
| `flag_do_crop` |  | boolean | no | `true` |  | ᠵᠠᠯᠠᠨ ᠪᡝᠶᡝᠨ ᡳ ᡤᠠᠳᠠᠨ ᠪᡝ ᠮᡠᠰᡝ ᡳ ᠵᠠᠯᠠᠨ ᡩᡝ ᠵᠠᠰᠠᠮᠪᡳ ᠰᡝᠮᡝ ᠵᠠᠰᠠᠮᠪᡳ᠉ |
| `flag_do_rot` |  | boolean | no | `true` |  | flag_do_crop ᠶᠠᠪᡠᠪᡠᠯᡝ ᠮᡠᠰᡝ ᠪᡝ ᠵᠠᠰᠠᠮᠪᡳ ᠰᡝᠮᡝ ᠵᠠᠰᠠᠮᠪᡳ᠉ |
| `dsize` |  | integer | no | `512` |  | ᠪᡠᠶᡝᠮᡝ ᠮᡠᠰᡝ ᠨᡳᠶᠠᠯᠮᠠᠨᡳ ᠵᠠᠯᠠᠨ᠉ |
| `scale` |  | number | no | `2.3` |  | ᠮᡠᠰᡝᠯᡝᠨᡳ ᠵᠠᠯᠠᠨ ᡳ ᠣᠯᡥᠣᠨ ᠪᡝ ᠣᠯᡥᠣᠨ᠉ |
| `vx_ratio` |  | number | no | `0` |  | ᠮᡠᠰᡝᠯᡝᠨᡳ ᠭᠣᠯᠮᡳᠨ ᡳ ᠠᠯᡳᠨ ᠵᠠᠯᠠᠨ ᡳ ᠵᠠᠰᠠᠨ᠉ |
| `vy_ratio` |  | number | no | `-0.125` |  | ᠮᡠᠰᡝᠯᡝᠨᡳ ᡩᡝᠯᡝ ᠵᠠᠯᠠᠯᠠᠨᡳ ᠬᠠᠯᠠᠨ: ᠵᠠᠯᠠᠨ ᠵᡝᠯᡝᠨ ᠣᠴᡳ ᠨᠠᠮᡠ, ᠵᠠᠯᠠᠨ ᠵᡝᠯᡝᠨ ᠠᡴᡳ ᠣᠴᡳ ᠵᡠᠯᡤᠠᠨ᠉ |
| `batch_size` |  | integer | no | `32` |  | ᠮᠣᠳᡝᠯ ᡳ ᠪᠠᠶᠠᠨ ᡳ ᠶᠠᠰᠠᠨ; ᠣᠯᡥᠣᠨ ᠪᡝ ᠣᠯᡥᠣᠨ ᠮᠣᠩᡤᠣ ᠪᡝ ᠪᠣᠯᡵᠣᠮᠪᡳ᠉ |
| `enable_safety_checker` |  | boolean | no | `false` |  | ᠠᠮᠠᠰᡳ ᠰᠠᠶᠠᠨ ᡳ ᠮᡠᠰᡝᠯᡝᠨ ᠪᡝ ᠵᠠᠰᠠᠮᠪᡳ ᠣᠴᡳ ᠣᠨᠴᡳᡥᠣᠨ; ᠵᠠᠰᠠᠨ ᠪᡝ ᠰᠢᠨᡝᠮᡝ ᠤᠨᡩᡝᠮᠪᡳ᠉ |

File parameters (`video`, `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
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
  "image": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.jpg"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
  "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.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/live-portrait?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.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/live-portrait?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.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 = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.jpg",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/live-portrait", 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": "live-portrait",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
        "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.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": "live-portrait",
  "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": 4500,
    "usd": "4.50",
    "charged": 4500,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "image_url": "https://content.doitong.com/images/showcase/v3/avatar/talking_avatar.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} | ᠪᡠᠶᡝᠮᡝ ᠵᡠᠴᡝᠨ ᡳ ᡶᡳᠯᡝ᠉ |

## Related models

- [Live Portrait · Image](https://doitong.com/developers/models/live-portrait/image.md) (`live-portrait/image`): $0.00125 / second of processing time
- [Kling AI Avatar 2.0 Pro](https://doitong.com/developers/models/kling-video/ai-avatar/v2/pro.md) (`kling-video/ai-avatar/v2/pro`): $0.115 / second of input audio
- [Sync Lipsync 3](https://doitong.com/developers/models/sync-lipsync/v3.md) (`sync-lipsync/v3`): $8.00 / minute of output video
- [VEED Fabric 1.0](https://doitong.com/developers/models/veed/fabric-1.0.md) (`veed/fabric-1.0`): from $0.08 / second of input audio
- [AI Avatar Multi](https://doitong.com/developers/models/ai-avatar/multi.md) (`ai-avatar/multi`): from $0.20 / second of output video
- [AI Avatar Multi Text](https://doitong.com/developers/models/ai-avatar/multi-text.md) (`ai-avatar/multi-text`): from $0.648 / run
- [AI Avatar Single Text](https://doitong.com/developers/models/ai-avatar/single-text.md) (`ai-avatar/single-text`): from $4.688 / run
- [Avatar X](https://doitong.com/developers/models/mirage-api/avatar-x/text-to-video.md) (`mirage-api/avatar-x/text-to-video`): $54.00 / run

## Links

- HTML page: https://doitong.com/developers/models/live-portrait
- 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=live-portrait
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/live-portrait