# Heygen · v2 · Translate · Precision API

> 8 ᡳᠯᡥᠠᠨ ᡩᡝ ᠪᠠᡳᠴᠠᠨ ᠪᡳᠳᡝᠨ ᡳ ᡤᡡᠯᡳᠮᡝ ᠵᠠᠯᠠᠪᡠᡵᡝ, ᡝᡵᡝ ᠵᠠᠪᡠᡵᠠ ᡩᠠᠯᠵᡳᠨ ᠮᡠᡯᡝᠨ ᡳ ᠵᠠᠯᠠᠪᡠᡵᡝ

ᠰᡠᠨᡤᠠ ᡳ ᡤᡳᠰᡠᠨ ᠪᡝ ᡝᠮᡠ ᠵᡠᡯᡝ ᡩᡝ `output_language` ᠵᡠᠸᡝᠨ ᡩᡝ ᠮᡠᠯᡥᡝᠮᠪᡳ; ᡝᠨᡩᡝᠮᡠ 178 ᠵᡠᠯᡤᡝ ᡩᡝ ᡝᠩᡤᡳᠯᡳᡧ᠂ ᠰᡳᠪᡝᠯᡳᠶᠠ᠂ ᡶᡵᠠᠨᠰᡳ᠂ ᡥᡳᠨᡩᡳ ᠠᠮᠠᠯᠠ ᠵᠠᠫᠠᠨ ᠪᡳ. ᠵᠠᠯᡠ ᠰᡠᠨᡤᠠ 8 ᠮᡳᠨᡠᡨ ᡩᡝ ᠣᠴᡳ ᠰᡳᠨᡩᠠᡥᠠ ᠣᠮᠪᡳ. ᡝᠮᡠ ᡤᡳᠰᡠᠨ ᡝᠮᡠᠰᡳ ᠮᡠᠯᡥᡝᠮᠪᡳ᠂ `speaker_num` ᡝᡵᡝᠮᠪᡳ᠂ ᡝᡵᡝ ᠵᡠᠯᡤᡝᠨ ᡩᡝ ᠵᡠᠯᡤᡝᠨ ᡤᡳᠰᡠᠨ ᠮᡠᠯᡥᡝᠮᠪᡳ᠂ ᡝᠮᡠ ᠵᡠᠯᡤᡝᠨ SRT ᠪᡠᡳᠮᠪᡳ᠂ ᠠᠮᠠᠯᠠ SRT ᡶᡳᠯᡝ ᠪᡠᠶᡝᠮᡝ ᡤᡝᡪᡳᠯᡝᠨ ᠪᡳᠮᡝ ᡠᠯᡥᠠᠨᠠᠮᠪᡳ. ᡝᠨᡝ ᡝᠮᡠ ᠵᡠᠯᡤᡝᠨ ᡳ ᠠᠯᡳᠨ ᠪᡳ.

- Model id: `heygen/v2/translate/precision`
- Made by: HeyGen
- Category: Lipsync & Avatars
- Output: video
- Price per second of your input video: $0.10 / second of input video (cheapest run $0.10 (100 API credits))
- Run: `POST https://api.doitong.com/v1/run/heygen/v2/translate/precision`
- Quote: `POST https://api.doitong.com/v1/quote/heygen/v2/translate/precision`
- Docs page: https://doitong.com/mnc/developers/models/heygen/v2/translate/precision

## Pricing

Price: **$0.10 / second of input video**. Price per second of your input 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 $1.00 = 1000 API credits (10 s input video × $0.10).

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/heygen/v2/translate/precision` 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 |  |  | ᠰᡠᠨᡤᠠᡳ ᠵᠠᠯᠠᠨ URL ᠪᡝ ᠮᡠᠰᡝᡳ ᠠᠰᡳᠮᡝ; ᠰᡠᠨᡤᠠᡳ ᠵᠠᠯᠠᠨ 8 ᠮᡳᠨᡠᡨ ᠠᠴᠠᠨᡩᡝ ᠠᡴᡡ. |
| `output_language` |  | enum (string) | yes |  | `English`, `Spanish`, `French`, `Hindi`, `Italian`, `German`, `Polish`, `Portuguese`, `Chinese`, `Japanese`, `Dutch`, `Turkish`, `Korean`, `Danish`, `Arabic`, `Romanian`, `Mandarin`, `Filipino`, `Swedish`, `Indonesian`, `Ukrainian`, `Greek`, `Czech`, `Bulgarian`, `Malay`, `Slovak`, `Croatian`, `Tamil`, `Finnish`, `Russian`, `Afrikaans (South Africa)`, `Albanian (Albania)`, `Amharic (Ethiopia)`, `Arabic (Algeria)`, `Arabic (Bahrain)`, `Arabic (Egypt)`, `Arabic (Iraq)`, `Arabic (Jordan)`, `Arabic (Kuwait)`, `Arabic (Lebanon)`, `Arabic (Libya)`, `Arabic (Morocco)`, `Arabic (Oman)`, `Arabic (Qatar)`, `Arabic (Saudi Arabia)`, `Arabic (Syria)`, `Arabic (Tunisia)`, `Arabic (United Arab Emirates)`, `Arabic (Yemen)`, `Armenian (Armenia)`, `Azerbaijani (Latin, Azerbaijan)`, `Bangla (Bangladesh)`, `Basque`, `Bengali (India)`, `Bosnian (Bosnia and Herzegovina)`, `Bulgarian (Bulgaria)`, `Burmese (Myanmar)`, `Catalan`, `Chinese (Cantonese, Traditional)`, `Chinese (Jilu Mandarin, Simplified)`, `Chinese (Mandarin, Simplified)`, `Chinese (Northeastern Mandarin, Simplified)`, `Chinese (Southwestern Mandarin, Simplified)`, `Chinese (Taiwanese Mandarin, Traditional)`, `Chinese (Wu, Simplified)`, `Chinese (Zhongyuan Mandarin Henan, Simplified)`, `Chinese (Zhongyuan Mandarin Shaanxi, Simplified)`, `Croatian (Croatia)`, `Czech (Czechia)`, `Danish (Denmark)`, `Dutch (Belgium)`, `Dutch (Netherlands)`, `English (Australia)`, `English (Canada)`, `English (Hong Kong SAR)`, `English (India)`, `English (Ireland)`, `English (Kenya)`, `English (New Zealand)`, `English (Nigeria)`, `English (Philippines)`, `English (Singapore)`, `English (South Africa)`, `English (Tanzania)`, `English (UK)`, `English (United States)`, `Estonian (Estonia)`, `Filipino (Philippines)`, `Finnish (Finland)`, `French (Belgium)`, `French (Canada)`, `French (France)`, `French (Switzerland)`, `Galician`, `Georgian (Georgia)`, `German (Austria)`, `German (Germany)`, `German (Switzerland)`, `Greek (Greece)`, `Gujarati (India)`, `Hebrew (Israel)`, `Hindi (India)`, `Hungarian (Hungary)`, `Icelandic (Iceland)`, `Indonesian (Indonesia)`, `Irish (Ireland)`, `Italian (Italy)`, `Japanese (Japan)`, `Javanese (Latin, Indonesia)`, `Kannada (India)`, `Kazakh (Kazakhstan)`, `Khmer (Cambodia)`, `Korean (Korea)`, `Lao (Laos)`, `Latvian (Latvia)`, `Lithuanian (Lithuania)`, `Macedonian (North Macedonia)`, `Malay (Malaysia)`, `Malayalam (India)`, `Maltese (Malta)`, `Marathi (India)`, `Mongolian (Mongolia)`, `Nepali (Nepal)`, `Norwegian Bokmål (Norway)`, `Pashto (Afghanistan)`, `Persian (Iran)`, `Polish (Poland)`, `Portuguese (Brazil)`, `Portuguese (Portugal)`, `Romanian (Romania)`, `Russian (Russia)`, `Serbian (Latin, Serbia)`, `Sinhala (Sri Lanka)`, `Slovak (Slovakia)`, `Slovenian (Slovenia)`, `Somali (Somalia)`, `Spanish (Argentina)`, `Spanish (Bolivia)`, `Spanish (Chile)`, `Spanish (Colombia)`, `Spanish (Costa Rica)`, `Spanish (Cuba)`, `Spanish (Dominican Republic)`, `Spanish (Ecuador)`, `Spanish (El Salvador)`, `Spanish (Equatorial Guinea)`, `Spanish (Guatemala)`, `Spanish (Honduras)`, `Spanish (Mexico)`, `Spanish (Nicaragua)`, `Spanish (Panama)`, `Spanish (Paraguay)`, `Spanish (Peru)`, `Spanish (Puerto Rico)`, `Spanish (Spain)`, `Spanish (United States)`, `Spanish (Uruguay)`, `Spanish (Venezuela)`, `Sundanese (Indonesia)`, `Swahili (Kenya)`, `Swahili (Tanzania)`, `Swedish (Sweden)`, `Tamil (India)`, `Tamil (Malaysia)`, `Tamil (Singapore)`, `Tamil (Sri Lanka)`, `Telugu (India)`, `Thai (Thailand)`, `Turkish (Türkiye)`, `Ukrainian (Ukraine)`, `Urdu (India)`, `Urdu (Pakistan)`, `Uzbek (Latin, Uzbekistan)`, `Vietnamese (Vietnam)`, `Welsh (United Kingdom)`, `Zulu (South Africa)`, `English - Your Accent`, `English - American Accent` | ᠰᡠᠨᡤᠠᡳ ᠮᡠᠰᡝᡳ ᠮᡠᠰᡝ ᡤᡳᠰᡠᠨ. |
| `translate_audio_only` |  | boolean \| null | no | `false` |  | ᠮᡠᠰᡝᡳ ᠵᠠᠯᠠᠨ ᠪᡝ ᡤᡳᠰᡠᠨᡳ ᠠᠩᡤᠠᠯᠠᠮᡝ ᠰᡳᠯᡤᡳᠮᡝ, ᡝᠵᡝᠨᡳ ᠵᠠᠯᠠᠨ ᠪᡝ ᠠᠯᡥᠠᠨ. |
| `speaker_num` |  | integer \| null | no |  |  | ᠰᡠᠨᡤᠠᡩᡝ ᠵᠠᠯᠠᠨᡳ ᡤᡳᠰᡠᠨᠴᡳᠨᡳ ᠠᠩᡤᠠᠯᠠᠮᡝ. |
| `enable_dynamic_duration` |  | boolean \| null | no | `true` |  | ᠵᠠᠯᠠᠨᡳ ᠵᠠᠯᠠᠨ ᠪᡝ ᠵᠠᠯᠠᠨ ᠠᠰᡳᠮᡝ, ᡤᡳᠰᡠᠨᡳ ᠵᠠᠯᠠᠨᡳ ᠠᠴᠠᠨᡩᠠᠯᠠᠨ ᠪᡝ ᡝᠮᡤᡳᠯᡝᠮᡝ ᠵᠠᠯᠠᠨᡳ ᠠᠮᠠᠯᠠᠨ ᠪᡝ ᠠᠯᡥᠠᠨ. |
| `brand_glossary_id` |  | string \| null | no |  |  | HeyGen ᠪᡝ ᠵᠠᠯᠠᠨᡳ ᠠᠰᡳᠮᡝ ᠮᡠᠰᡝ ᠪᡝ ᠠᠰᡳᠮᡝ ᠮᡠᠰᡝᡳ ᠵᠠᠯᠠᠨᡳ ᠵᠠᠯᠠᠨ. |
| `srt_url` |  | string \| null | no |  |  | ᠠᠮᠠᠯᠠᠨ SRT ᡶᡳᠯᡝᠨᡳ URL. |
| `srt_role` |  | enum (string) \| null | no |  | `input`, `output` | ᠠᠰᡳᠮᡝ ᠠᠮᠠᠯᠠᠨ SRT ᠪᡝ ᠵᠠᠯᠠᠨᡳ ᠠᠩᡤᠠᠯᠠᠨ ᠠᠮᠠᠯᠠᠨ ᠠᡳ ᠮᡠᠰᡝᡳ ᠠᠮᠠᠯᠠᠨ. |
| `enable_caption` |  | boolean | no | `false` |  | ᠮᡠᠰᡝᡳ ᠰᡠᠨᡤᠠᡩᡝ SRT ᡤᠠᠳᠠᠨᡳ ᡶᡳᠯᡝ ᠪᡝ ᠪᡠᠶᡝᠮᡝᠮᠪᡳ. |

File parameters (`video`) 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",
  "output_language": "English"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
  "output_language": "English"
}
```

## 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/heygen/v2/translate/precision?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",
    "output_language": "English"
  }'

# 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/heygen/v2/translate/precision?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "output_language": "English"
  }),
});
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",
    "output_language": "English",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/heygen/v2/translate/precision", 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": "heygen/v2/translate/precision",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
        "output_language": "English"
      },
      "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": "heygen/v2/translate/precision",
  "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": 1000,
    "usd": "1.00",
    "charged": 1000,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "output_language": "English"
  },
  "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
    },
    "caption_file": {
      "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} | ᠮᡠᠰᡝᡳ ᠠᠮᠠᠯᠠᠨ ᠪᡝ ᠠᠮᠠᠯᠠᠮᡝ ᠰᡠᠨᡤᠠᡳ ᡶᡳᠯᡝ. |
| `caption_file` | object {url, content_type, file_name, file_size} \| null | `enable_caption` ᠪᡝ true ᠠᠰᡳᠮᡝ ᠪᡠᠶᡝᠮᡝᠮᠪᡳ SRT ᡤᠠᠳᠠᠨ. |

## Related models

- [Heygen · v2 · Video Agent](https://doitong.com/developers/models/heygen/v2/video-agent.md) (`heygen/v2/video-agent`): $0.937 / run
- [Heygen · v2 · Translate · Speed](https://doitong.com/developers/models/heygen/v2/translate/speed.md) (`heygen/v2/translate/speed`): $0.05 / second of input video
- [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
- [Heygen Lipsync - Precision](https://doitong.com/developers/models/heygen/v3/lipsync/precision.md) (`heygen/v3/lipsync/precision`): $0.10 / second of output video
- [Heygen Lipsync - Speed](https://doitong.com/developers/models/heygen/v3/lipsync/speed.md) (`heygen/v3/lipsync/speed`): $0.05 / second of output video
- [Heygen v5 Digital Twin](https://doitong.com/developers/models/heygen/avatar5/digital-twin.md) (`heygen/avatar5/digital-twin`): $0.10 / second of input audio

## Links

- HTML page: https://doitong.com/developers/models/heygen/v2/translate/precision
- 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=heygen/v2/translate/precision
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/heygen/v2/translate/precision