# Sync Lipsync 3 API

> Časovno prilagodi ustnice katerega koli govorečega videa novemu zvočnemu posnetku.

Sync Labs' lipsync-3 zamenja gibanje ust osebe v videu, da se ujema z novim glasovnim posnetkom, za sinhronizacijo, lokalizacijo oglasov in popravljanje replik v postprodukciji. Ko se dolžini zvoka in videa razlikujeta, izberite obrezovanje, ponavljanje, odbijanje, dopolnitev s tišino ali preslikavo.

- Model id: `sync-lipsync/v3`
- Made by: Sync Labs
- Category: Lipsync & Avatars
- Output: video
- Price per minute of your output video: $8.00 / minute of output video (cheapest run $8.00 (8000 API credits))
- Run: `POST https://api.doitong.com/v1/run/sync-lipsync/v3`
- Quote: `POST https://api.doitong.com/v1/quote/sync-lipsync/v3`
- Docs page: https://doitong.com/sl/developers/models/sync-lipsync/v3

## Pricing

Price: **$8.00 / minute of output video**. Price per minute of your output video: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $1.334 = 1334 API credits (0.1667 min output video × $8.00).

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/sync-lipsync/v3` 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 |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | URL, ki kaže na vhodni video. |
| `audio_url` | `audio` | string (audio URL) | yes |  |  | Lokacija vhodnega zvoka kot URL. |
| `sync_mode` |  | enum (string) | no | `cut_off` | `cut_off`, `loop`, `bounce`, `silence`, `remap` | Način sinhronizacije ustnic za obravnavo razlik v dolžini zvoka in videa. |
| `options` |  | object {sync_mode, model_mode, prompt, temperature, active_speaker_detection, occlusion_detection_enabled} \| null | no |  |  | Tu konfigurirajte dodatno vedenje generiranja Sync.so; vse podane možnosti options.sync_mode imajo prednost pred vrednostjo sync_mode na najvišji ravni. |
| `options.sync_mode` |  | enum (string) \| null | no |  | `cut_off`, `loop`, `bounce`, `silence`, `remap` | Preglasitev sync_mode na najvišji ravni, ki določa, kaj se zgodi, ko imata vhodni zvok in video različni dolžini. |
| `options.model_mode` |  | enum (string) \| null | no |  | `lips`, `face`, `head`, `lipsync`, `emotion`, `talking_head` | Izbira območja urejanja, predvsem za react-1, ki določa, kateri del model spremeni. |
| `options.prompt` |  | enum (string) \| null | no |  | `happy`, `sad`, `angry`, `disgusted`, `surprised`, `neutral` | Čustvena navodila, ki jih react-1 uporablja predvsem za usmerjanje generiranja. |
| `options.temperature` |  | number \| null | no |  | 0 – 1 | Nastavitev izraznosti brez učinka na sync-3, ki to upravlja izvorno. Pri modelih, ki uporabljajo to nastavitev, 0 pomeni najmanj izrazit lipsync, 1 pa najbolj izrazit lipsync. |
| `options.active_speaker_detection` |  | object {auto_detect, v3, use_v2, frame_number, coordinates, bounding_boxes, bounding_boxes_url, face_image} \| null | no |  |  | Nastavitve za prepoznavanje aktivnega govorca v videih z več osebami. |
| `options.active_speaker_detection.auto_detect` |  | boolean \| null | no |  |  | Samodejno prepoznavanje aktivnega govorca in uporaba generiranja za to osebo. |
| `options.active_speaker_detection.v3` |  | boolean \| null | no |  |  | Uporaba zaznavanja aktivnega govorca v3. |
| `options.active_speaker_detection.use_v2` |  | boolean \| null | no |  |  | Zastarela nastavitev za zaznavanje aktivnega govorca v2. |
| `options.active_speaker_detection.frame_number` |  | integer \| null | no |  | ≥ 0 | Indeks sličice, uporabljene za koordinate, ki ročno izberejo govorca. |
| `options.active_speaker_detection.coordinates` |  | array of integer \| null | no |  | 2 – 2 items | Referenčna točka obraza, podana kot [x, y] za govorca v frame_number. |
| `options.active_speaker_detection.bounding_boxes` |  | array of array of integer \| null | no |  |  | Zaznani omejitveni okvirji obraza za vsako sličico, izraženi kot [x1, y1, x2, y2]. |
| `options.active_speaker_detection.bounding_boxes_url` |  | string \| null | no |  |  | URL datoteke JSON, ki zagotavlja omejitvene okvirje za vsako sličico. |
| `options.active_speaker_detection.face_image` |  | string \| null | no |  |  | Slika obraza, kodirana v Base64, uporabljena za ročno izbiro govorca. |
| `options.occlusion_detection_enabled` |  | boolean \| null | no |  |  | Preklop zaznavanja zakritosti brez učinka na sync-3, ker je tam zaznavanje samodejno; sicer določa, ali generiranje vključuje zaznavanje zakritosti. |

File parameters (`video`, `audio`) 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/avatar/talking_avatar_loop.mp4",
  "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
}
```

A fuller example:

```json
{
  "video": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
  "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
}
```

## 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/sync-lipsync/v3?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
  }'

# 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/sync-lipsync/v3?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
  }),
});
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": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/sync-lipsync/v3", 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": "sync-lipsync/v3",
      "input": {
        "video": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
        "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
      },
      "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": "sync-lipsync/v3",
  "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": 1334,
    "usd": "1.334",
    "charged": 1334,
    "refunded": 0
  },
  "input": {
    "video": "https://content.doitong.com/video/showcase/v3/avatar/talking_avatar_loop.mp4",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3"
  },
  "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, ki ga ustvari model. |

## Related models

- [Sync React-1](https://doitong.com/developers/models/sync-lipsync/react-1.md) (`sync-lipsync/react-1`): $10.00 / minute of output video
- [sync-3 Avatar Image to Video](https://doitong.com/developers/models/sync-lipsync/v3/image-to-video.md) (`sync-lipsync/v3/image-to-video`): $8.00 / minute of input audio
- [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
- [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
- [Sync Lipsync](https://doitong.com/developers/models/sync-lipsync/v2/pro.md) (`sync-lipsync/v2/pro`): $5.00 / minute of output video
- [Sync Lipsync 2.0](https://doitong.com/developers/models/sync-lipsync/v2.md) (`sync-lipsync/v2`): from $3.00 / minute of output video
- [sync.so -- lipsync 1.9.0-beta](https://doitong.com/developers/models/sync-lipsync.md) (`sync-lipsync`): $0.70 / minute of output video
- [AI Avatar Multi](https://doitong.com/developers/models/ai-avatar/multi.md) (`ai-avatar/multi`): from $0.20 / second of output video

## Links

- HTML page: https://doitong.com/developers/models/sync-lipsync/v3
- 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=sync-lipsync/v3
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/sync-lipsync/v3