# Eleven v4 Text to Speech API

> Satır içi duygu etiketleri ve sözcük zaman damgaları sunan, ElevenLabs'in en ifade gücü yüksek ses modeli.

Eleven v4, metni doğal ve duygulu seslerle okur; [excited] veya [whispering] gibi satır içi ses etiketlerinin yanı sıra IPA telaffuzlarını da anlar. Bir ses seçin, kararlılığı ve benzerliği ayarlayın, dili belirleyin ve isteğe bağlı olarak sözcük düzeyinde zaman damgaları alın. MP3, PCM, Opus ve telefon formatları.

- Model id: `elevenlabs/tts/eleven-v4`
- Made by: ElevenLabs
- Category: Text to Speech
- Output: audio
- Price: $0.08 / 1000 characters (cheapest run $0.08 (80 API credits))
- Run: `POST https://api.doitong.ru/v1/run/elevenlabs/tts/eleven-v4`
- Quote: `POST https://api.doitong.ru/v1/quote/elevenlabs/tts/eleven-v4`
- Docs page: https://doitong.com/tr/developers/models/elevenlabs/tts/eleven-v4

## Pricing

Price: **$0.08 / 1000 characters**. Billed per character of `text` (the price is per 1000 characters).

The full example input below costs $0.004 = 4 API credits (48 characters × 80 API credits / 1000 characters).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/elevenlabs/tts/eleven-v4` 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

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `text` |  | string | yes |  | 1 – 5000 characters | Konuşma içeriğini metin olarak sağlayın; isteğe bağlı olarak [whispering] gibi ses etiketleriyle sunumu belirtebilir veya eğik çizgiler arasına IPA telaffuzları yazabilirsiniz. |
| `voice` |  | string | no | `Rachel` |  | Konuşma sentezlemek için seçilen ses. |
| `stability` |  | number | no | `0.5` | 0 – 1 | Ses kararlılığı, düşük ayarlarda ifadeli sunum ile yüksek ayarlarda tutarlı sunum arasında denge kurar. |
| `similarity_boost` |  | number | no | `0.75` | 0 – 1 | Referans ses benzerliği denetimi; doğallık açısından olası bir ödünleşim içerir: artırılması eşleşmeyi güçlendirir, ancak çıktının daha az doğal duyulmasına neden olabilir. |
| `seed` |  | integer \| null | no |  | 0 – 4,294,967,295 | Tekrarlanabilir sonuçlar elde etmeyi denemek için kullanılan seed; çıktının tamamen aynı şekilde tekrarlanması garanti edilmez. |
| `language_code` |  | string \| null | no |  |  | Konuşma üretirken ve metni normalleştirirken kullanılan ISO 639-1 dil kodu. |
| `output_format` |  | enum (string) | no | `mp3_44100_128` | `mp3_22050_32`, `mp3_44100_32`, `mp3_44100_64`, `mp3_44100_96`, `mp3_44100_128`, `mp3_44100_192`, `pcm_8000`, `pcm_16000`, `pcm_22050`, `pcm_24000`, `pcm_44100`, `pcm_48000`, `ulaw_8000`, `alaw_8000`, `opus_48000_32`, `opus_48000_64`, `opus_48000_96`, `opus_48000_128`, `opus_48000_192` | codec_sample_rate_bitrate kalıbı kullanılarak belirtilen üretilmiş ses formatı. |
| `apply_text_normalization` |  | enum (string) | no | `auto` | `auto`, `on`, `off` | Üretimden önce metin normalleştirmesini, sayıların ve tarihlerin işlenmesi de dahil olmak üzere denetler. |
| `timestamps` |  | boolean | no | `false` |  | Üretilen sese ayrı karakterler için zamanlama verilerinin eşlik edip etmeyeceğini denetler. |

## Example input

Required parameters only:

```json
{
  "text": "[excited] Hello! Welcome to the future of voice."
}
```

A fuller example:

```json
{
  "text": "[excited] Hello! Welcome to the future of voice.",
  "voice": "Aria"
}
```

## 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.ru/v1/run/elevenlabs/tts/eleven-v4?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "[excited] Hello! Welcome to the future of voice.",
    "voice": "Aria"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.ru/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/elevenlabs/tts/eleven-v4?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "text": "[excited] Hello! Welcome to the future of voice.",
    "voice": "Aria"
  }),
});
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.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "text": "[excited] Hello! Welcome to the future of voice.",
    "voice": "Aria",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/elevenlabs/tts/eleven-v4", 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.ru/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": "elevenlabs/tts/eleven-v4",
      "input": {
        "text": "[excited] Hello! Welcome to the future of voice.",
        "voice": "Aria"
      },
      "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": "elevenlabs/tts/eleven-v4",
  "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": 4,
    "usd": "0.004",
    "charged": 4,
    "refunded": 0
  },
  "input": {
    "text": "[excited] Hello! Welcome to the future of voice.",
    "voice": "Aria"
  },
  "output": {
    "audio": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_name": "0-output.mp3",
      "file_size": 1843200
    },
    "timestamps": []
  },
  "outputs": [
    {
      "type": "audio",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_size": 1843200,
      "duration": 12,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `audio` | object {url, content_type, file_name, file_size} | Üretim tarafından oluşturulan ses dosyası. |
| `timestamps` | array of any \| null | `timestamps` True olarak ayarlanmış isteklerde yalnızca eklenen, her sözcük için zaman damgası içeren üretilmiş konuşma zamanlama verileri. |

## Related models

- [Eleven v4 Turbo](https://doitong.com/developers/models/elevenlabs/tts/eleven-v4-turbo.md) (`elevenlabs/tts/eleven-v4-turbo`): $0.04 / 1000 characters
- [Elevenlabs Tts Eleven V3](https://doitong.com/developers/models/elevenlabs/tts/eleven-v3.md) (`elevenlabs/tts/eleven-v3`): $0.10 / 1000 characters
- [MiniMax Speech 2.8 HD](https://doitong.com/developers/models/minimax/speech-2.8-hd.md) (`minimax/speech-2.8-hd`): $0.10 / 1000 characters
- [Elevenlabs](https://doitong.com/developers/models/elevenlabs/text-to-dialogue/eleven-v3.md) (`elevenlabs/text-to-dialogue/eleven-v3`): $0.10 / run
- [ElevenLabs TTS Multilingual v2](https://doitong.com/developers/models/elevenlabs/tts/multilingual-v2.md) (`elevenlabs/tts/multilingual-v2`): $0.10 / 1000 characters
- [ElevenLabs TTS Turbo v2.5](https://doitong.com/developers/models/elevenlabs/tts/turbo-v2.5.md) (`elevenlabs/tts/turbo-v2.5`): $0.05 / 1000 characters
- [Async Text to Speech Pro V1.0](https://doitong.com/developers/models/async/tts-pro/v1.0.md) (`async/tts-pro/v1.0`): $0.01 / 1000 characters
- [Bytedance Seed Speech Text to Speech](https://doitong.com/developers/models/bytedance/seed-speech/tts/v2.md) (`bytedance/seed-speech/tts/v2`): $0.03 / 1000 characters

## Links

- HTML page: https://doitong.com/developers/models/elevenlabs/tts/eleven-v4
- 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=elevenlabs/tts/eleven-v4
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/elevenlabs/tts/eleven-v4