# Live Portrait API

> Ina-animate ang portrait larawan gamit ang mga expression mula sa driving video, na may pinong face control

Inililipat ang facial motion mula sa driving video papunta sa still portrait upang makagawa ng video. Bukod sa `video_url` at `image_url`, nag-aalok ito ng numeric control para sa blink, eyebrow, wink, pupils, mouth shape (aaa, eee, woo), smile at head rotation sa pitch, yaw at roll. Available ang mga crop at stitching option gaya ng `flag_do_crop` at `flag_pasteback`, at itinatakda ng `dsize` ang output size (default 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/fil/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 |  |  | URL ng video na ginagamit upang patakbuhin ang lip synchronization. |
| `image_url` | `image` | string (image URL) | yes |  |  | URL ng larawan para sa animation. |
| `blink` |  | number | no | `0` | -30 – 30 | Antas ng pagkurap ng mga mata. |
| `eyebrow` |  | number | no | `0` | -30 – 30 | Antas ng pagtaas o pagbaba ng mga kilay. |
| `wink` |  | number | no | `0` | 0 – 25 | Antas ng pagkindat. |
| `pupil_x` |  | number | no | `0` | -45 – 45 | Lawak ng pahalang na paggalaw ng mga pupil. |
| `pupil_y` |  | number | no | `0` | -45 – 45 | Lawak ng patayong paggalaw ng mga pupil. |
| `aaa` |  | number | no | `0` | -200 – 200 | Antas ng pagbuka ng bibig sa hugis na 'aaa'. |
| `eee` |  | number | no | `0` | -40 – 40 | Antas ng paghubog ng bibig sa posisyong 'eee'. |
| `woo` |  | number | no | `0` | -100 – 100 | Antas ng paghubog ng bibig sa posisyong 'woo'. |
| `smile` |  | number | no | `0` | -2 – 2 | Antas ng pagngiti. |
| `flag_lip_zero` |  | boolean | no | `true` |  | Pagsara ng labi bago ang animation, na naaangkop lamang kapag parehong nakatakda sa False ang flag_eye_retargeting at flag_lip_retargeting. |
| `rotate_pitch` |  | number | no | `0` | -45 – 45 | Lawak ng pag-ikot ng mukha sa pitch axis. |
| `rotate_yaw` |  | number | no | `0` | -45 – 45 | Lawak ng pag-ikot ng mukha sa yaw axis. |
| `rotate_roll` |  | number | no | `0` | -45 – 45 | Lawak ng pag-ikot ng mukha sa roll axis. |
| `flag_eye_retargeting` |  | boolean | no | `false` |  | Toggle ng eye retargeting. |
| `flag_lip_retargeting` |  | boolean | no | `false` |  | Toggle ng lip retargeting. |
| `flag_stitching` |  | boolean | no | `true` |  | Toggle ng stitching; inirerekomendang i-enable ito. |
| `flag_relative` |  | boolean | no | `true` |  | Toggle ng relative motion. |
| `flag_pasteback` |  | boolean | no | `true` |  | Opsyon sa paste-back/stitching na naglalagay ng animated na crop ng mukha sa orihinal na larawan at minamapa ito palabas ng face-crop coordinates. |
| `flag_do_crop` |  | boolean | no | `true` |  | Kinokontrol kung kino-crop ang source portrait sa face-crop coordinate space. |
| `flag_do_rot` |  | boolean | no | `true` |  | Kinokontrol kung isinasagawa ang rotation kapag true ang flag_do_crop. |
| `dsize` |  | integer | no | `512` |  | Mga dimension ng nagresultang larawan. |
| `scale` |  | number | no | `2.3` |  | Scale multiplier na inilapat sa face crop. |
| `vx_ratio` |  | number | no | `0` |  | Ratio na kumokontrol sa horizontal offset ng face crop. |
| `vy_ratio` |  | number | no | `-0.125` |  | Ratio ng vertical positioning ng face crop: tinutukoy ng sign ang direksiyon, pataas para sa positive value at pababa para sa negative value. |
| `batch_size` |  | integer | no | `32` |  | Laki ng batch ng modelo, na may trade-off sa bilis at memory: mas maraming memory ang ginagamit kapag tinaasan ito kapalit ng mas mabilis na execution. |
| `enable_safety_checker` |  | boolean | no | `false` |  | Kinokontrol kung naka-enable ang pagsusuri sa kaligtasan. Kapag aktibo, pinoproseso ng checker ang input na larawan upang tiyaking may mukha ito bago iproseso ng modelo. |

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} | Video file na ginawa sa pagbuo. |

## 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