# Live Portrait API

> Animira portretno sliko z izrazi iz vodilnega videoposnetka ter ponuja natančen nadzor obraza

Prenese obrazno gibanje z vodilnega videoposnetka na mirujoči portret in ustvari videoposnetek. Poleg `video_url` in `image_url` ponuja številske nastavitve za mežikanje, obrvi, pomežik, zenice, oblike ust (aaa, eee, woo), nasmeh ter vrtenje glave po oseh pitch, yaw in roll. Na voljo so možnosti obrezovanja in sestavljanja, kot sta `flag_do_crop` in `flag_pasteback`, `dsize` pa nastavi izhodno velikost (privzeto 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/sl/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 videa, uporabljen za sinhronizacijo ustnic. |
| `image_url` | `image` | string (image URL) | yes |  |  | URL slike za animacijo. |
| `blink` |  | number | no | `0` | -30 – 30 | Stopnja mežikanja z očmi. |
| `eyebrow` |  | number | no | `0` | -30 – 30 | Stopnja dviganja ali spuščanja obrvi. |
| `wink` |  | number | no | `0` | 0 – 25 | Stopnja mežikanja z enim očesom. |
| `pupil_x` |  | number | no | `0` | -45 – 45 | Količina vodoravnega premikanja zenic. |
| `pupil_y` |  | number | no | `0` | -45 – 45 | Količina navpičnega premikanja zenic. |
| `aaa` |  | number | no | `0` | -200 – 200 | Stopnja odpiranja ust v obliko 'aaa'. |
| `eee` |  | number | no | `0` | -40 – 40 | Stopnja oblikovanja ust v položaj 'eee'. |
| `woo` |  | number | no | `0` | -100 – 100 | Stopnja oblikovanja ust v položaj 'woo'. |
| `smile` |  | number | no | `0` | -2 – 2 | Stopnja nasmeha. |
| `flag_lip_zero` |  | boolean | no | `true` |  | Zapiranje ustnic pred animacijo, uporabno samo, če sta flag_eye_retargeting in flag_lip_retargeting nastavljena na False. |
| `rotate_pitch` |  | number | no | `0` | -45 – 45 | Količina vrtenja obraza vzdolž nagibne osi. |
| `rotate_yaw` |  | number | no | `0` | -45 – 45 | Količina vrtenja obraza vzdolž osi yaw. |
| `rotate_roll` |  | number | no | `0` | -45 – 45 | Količina vrtenja obraza vzdolž osi roll. |
| `flag_eye_retargeting` |  | boolean | no | `false` |  | Preklop preusmerjanja oči. |
| `flag_lip_retargeting` |  | boolean | no | `false` |  | Preklop preusmerjanja ustnic. |
| `flag_stitching` |  | boolean | no | `true` |  | Preklop spajanja; priporočeno ga je omogočiti. |
| `flag_relative` |  | boolean | no | `true` |  | Preklop relativnega gibanja. |
| `flag_pasteback` |  | boolean | no | `true` |  | Možnost vrnitve prilepljenega obraza/spajanja, ki animirani izrez obraza vstavi v izvirno sliko in ga preslika iz koordinat izreza obraza. |
| `flag_do_crop` |  | boolean | no | `true` |  | Določa, ali se izvirni portret obreže v koordinatni prostor izreza obraza. |
| `flag_do_rot` |  | boolean | no | `true` |  | Določa, ali se pri true za flag_do_crop izvede vrtenje. |
| `dsize` |  | integer | no | `512` |  | Mere nastale slike. |
| `scale` |  | number | no | `2.3` |  | Množilnik merila, uporabljen za izrez obraza. |
| `vx_ratio` |  | number | no | `0` |  | Razmerje, ki nadzoruje vodoravni odmik izreza obraza. |
| `vy_ratio` |  | number | no | `-0.125` |  | Razmerje navpične postavitve izreza obraza: predznak določa smer, navzgor pri pozitivnih in navzdol pri negativnih vrednostih. |
| `batch_size` |  | integer | no | `32` |  | Velikost paketa modela, pri kateri gre za kompromis med hitrostjo in pomnilnikom: povečanje porabi več pomnilnika v zameno za hitrejše izvajanje. |
| `enable_safety_checker` |  | boolean | no | `false` |  | Določa, ali je varnostno preverjanje omogočeno. Ko je aktivno, preverjevalnik obdela vhodno sliko in preveri, ali vsebuje obraz, preden jo obdela model. |

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 datoteka, ustvarjena z generiranjem. |

## 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