---
title: "ElevenLabs Dubbing"
description: "ElevenLabs Dubbing re-voices a finished video in another language and keeps the speaker's own voice. It is the cheapest dub model, and the only one whose price you know exactly before you run it."
url: https://docs.roasos.com/models/dub/elevenlabs-dubbing
---

# ElevenLabs Dubbing

<Callout>
  Family 

  `dub`

   · model 

  `elevenlabs-dubbing`

   · catalog 

  `model-catalog@2026-10-06.v5`

   · pricing 

  `customer-pricing@2026-11-05.v15`

  .
</Callout>

## Endpoint

```http
POST https://api.roasos.com/v1/dub/elevenlabs-dubbing
```

Send your API key as a bearer token. The key needs the scope `api:write`. Every paid request also needs an `Idempotency-Key` header.

The envelope fields `quote_only`, `quote_id`, `webhook_url` and `wait_timeout_seconds` behave the same on each model endpoint. Refer to [Jobs](/concepts/jobs) and [Quotes and credits](/concepts/quotes-and-credits).

## Good at

Take an ad that works in one market into a second market. Send the clip and a two-letter language code; the model detects the speakers and the source language on its own. Use it when the voice matters more than the mouth: it translates the audio and does not change the lips.

The price is $0.6 for each minute of the SOURCE clip, rounded up to a whole minute. A 61-second clip costs two minutes, not 1.02. The quote is therefore exact, and settlement equals it.

## Pricing

The unit is one **source\_second**. Pricing key: `elevenlabs-dubbing`.

| Request       | Credits |
| ------------- | ------- |
| `30s_source`  | 8       |
| `60s_source`  | 8       |
| `120s_source` | 15      |

The credits come from the roasOS pricing table. No other field changes the price. To get the exact price of your request, send it with `quote_only: true` first.

## Modes

* `video-dub`

Provider endpoints: `fal-ai/elevenlabs/dubbing`.

## Request fields

| Field                  | Type    | Required | Default | Rule                          |
| ---------------------- | ------- | -------- | ------- | ----------------------------- |
| `highest_resolution`   | boolean | no       | `true`  | —                             |
| `language`             | string  | yes      | —       | matches `^[a-z]{2}$`          |
| `quote_id`             | string  | no       | —       | UUID                          |
| `quote_only`           | boolean | no       | `false` | —                             |
| `source_language`      | string  | no       | —       | matches `^[a-z]{2}$`          |
| `speaker_count`        | integer | no       | —       | 1–50                          |
| `video_url`            | string  | yes      | —       | https URL; ≤ 4,096 characters |
| `wait_timeout_seconds` | integer | no       | `0`     | 0–60                          |
| `webhook_url`          | string  | no       | —       | https URL; ≤ 4,096 characters |

The schema is strict. A field that is not in this table gets `400 unsupported_option`. The field names are the roasOS role names. One role has one name in every family.

## Media

This endpoint accepts these media roles:

* `video_url` — the source video

| Role        | Items | Maximum size | Content types | Duration |
| ----------- | ----- | ------------ | ------------- | -------- |
| `video_url` | ≤ 1   | 100 MB       | `video/mp4`   | 0–480 s  |

Every other role is refused: `avatar_id`, `elements`, `product_id`, `product_images`, `references`, `reference_images`, `image_url`, `end_image_url`, `scene_id`, `scene_image`, `video_urls`, `audio_urls`, `audio_url`, `voice_id`. A refused role gets `400 unsupported_option`.

<Callout>
  Each media URL must be an immutable object on 

  `https://cdn.roasos.com`

   that your workspace owns. Any other URL gets 

  `400 reference_media_not_workspace_owned`

  . Refer to 

  [Reference media and uploads](/concepts/reference-media)

   to learn how to put a file there.
</Callout>

## Prompt

None. This model takes no prompt.

Send `language` as an ISO 639-1 code, in lower case: `es`, `fr`, `de`, `ja`, `pt`, `zh`. Leave `source_language` out unless the source is hard to detect. Leave `speaker_count` out unless the model splits one speaker into two, or joins two into one.

## Not exposed

These catalog entries describe omitted inputs, pinned values and source constraints. They do not imply that the provider accepts every listed field.

* `audio_url` — not accepted by this public endpoint.

## Result

The result kind is `video`. Always present: `url`.

```json
{
  "data": {
    "id": "gen_…",
    "kind": "video",
    "model": "elevenlabs-dubbing",
    "status": "completed",
    "result": {
      "url": "https://cdn.roasos.com/workspaces/ws_01/result"
    }
  }
}
```

The files are immutable objects on `https://cdn.roasos.com`. A result URL is a valid media input for your next request.

## Example

The three steps are always the same: quote, run, poll.

<CodeBlockTabs defaultValue="cURL">
  <CodeBlockTabsList>
    <CodeBlockTabsTrigger value="cURL">
      cURL
    </CodeBlockTabsTrigger>

    <CodeBlockTabsTrigger value="JavaScript">
      JavaScript
    </CodeBlockTabsTrigger>

    <CodeBlockTabsTrigger value="Python">
      Python
    </CodeBlockTabsTrigger>
  </CodeBlockTabsList>

  <CodeBlockTab value="cURL">
    ```bash
    # 1. Quote. Nothing is spent.
    curl -X POST https://api.roasos.com/v1/dub/elevenlabs-dubbing \
      -H "Authorization: Bearer roasos_sk_live_..." \
      -H "Idempotency-Key: 0f1c9e2a-elevenlabs-dubbing-0001" \
      -H "Content-Type: application/json" \
      -d '{"quote_only":true,"language":"es","video_url":"https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"}'
    # 200 { "data": { "kind": "quote", "quote_id": "q_7Hk...", "credits": 8, "expires_at": "...",
    #        "confirmation": { "model": "elevenlabs-dubbing", "example": "30s_source" } } }

    # 2. Run. Same body, same Idempotency-Key, quote_id in place of quote_only.
    curl -X POST https://api.roasos.com/v1/dub/elevenlabs-dubbing \
      -H "Authorization: Bearer roasos_sk_live_..." \
      -H "Idempotency-Key: 0f1c9e2a-elevenlabs-dubbing-0001" \
      -H "Content-Type: application/json" \
      -d '{"quote_id":"q_7Hk...","language":"es","video_url":"https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"}'
    # 201 { "data": { "id": "gen_...", "status": "queued", "credits_reserved": 8 } }

    # 3. Poll, then read the result.
    curl https://api.roasos.com/v1/jobs/gen_.../status -H "Authorization: Bearer roasos_sk_live_..."
    curl https://api.roasos.com/v1/jobs/gen_.../result -H "Authorization: Bearer roasos_sk_live_..."
    ```
  </CodeBlockTab>

  <CodeBlockTab value="JavaScript">
    ```javascript
    const key = process.env.ROASOS_API_KEY;
    const url = "https://api.roasos.com/v1/dub/elevenlabs-dubbing";
    const idempotencyKey = "0f1c9e2a-elevenlabs-dubbing-0001";
    const input = {
      "language": "es",
      "video_url": "https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"
    };

    const post = (payload) =>
      fetch(url, {
        method: "POST",
        headers: {
          Authorization: `Bearer ${key}`,
          "Idempotency-Key": idempotencyKey,
          "Content-Type": "application/json",
        },
        body: JSON.stringify(payload),
      }).then((response) => response.json());

    // 1. Quote. Nothing is spent.
    const quote = await post({ quote_only: true, ...input });
    console.log(quote.data.credits);

    // 2. Run.
    const job = await post({ quote_id: quote.data.quote_id, ...input });

    // 3. Poll, then read the result.
    let status = "queued";
    while (status !== "completed" && status !== "failed" && status !== "canceled") {
      await new Promise((done) => setTimeout(done, 3000));
      const poll = await fetch(`${url.split("/v1")[0]}/v1/jobs/${job.data.id}/status`, {
        headers: { Authorization: `Bearer ${key}` },
      }).then((response) => response.json());
      status = poll.data.status;
    }

    const result = await fetch(`${url.split("/v1")[0]}/v1/jobs/${job.data.id}/result`, {
      headers: { Authorization: `Bearer ${key}` },
    }).then((response) => response.json());
    console.log(result.data.result);
    ```
  </CodeBlockTab>

  <CodeBlockTab value="Python">
    ```python
    import os, time, requests

    key = os.environ["ROASOS_API_KEY"]
    url = "https://api.roasos.com/v1/dub/elevenlabs-dubbing"
    headers = {
        "Authorization": f"Bearer {key}",
        "Idempotency-Key": "0f1c9e2a-elevenlabs-dubbing-0001",
    }
    payload = {
        "language": "es",
        "video_url": "https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"
    }

    # 1. Quote. Nothing is spent.
    quote = requests.post(url, headers=headers, json={"quote_only": True, **payload}).json()
    print(quote["data"]["credits"])

    # 2. Run.
    job = requests.post(url, headers=headers, json={"quote_id": quote["data"]["quote_id"], **payload}).json()
    job_id = job["data"]["id"]

    # 3. Poll, then read the result.
    jobs = "https://api.roasos.com/v1/jobs"
    status = "queued"
    while status not in ("completed", "failed", "canceled"):
        time.sleep(3)
        status = requests.get(f"{jobs}/{job_id}/status", headers=headers).json()["data"]["status"]

    result = requests.get(f"{jobs}/{job_id}/result", headers=headers).json()
    print(result["data"]["result"])
    ```
  </CodeBlockTab>
</CodeBlockTabs>

## Today

`POST /v1/dub/elevenlabs-dubbing` is the only path to this model. There is no deprecated alias: `POST /v1/generations` has no `dub` type, so the old path cannot reach this family at all.

The source must be an MP4 your workspace owns, and at most 480 seconds. Audio-only input is refused: the provider fills its video output only from a video source, so an audio-only call returns nothing roasOS can store.

## See also

* [`llms.txt` for this model](https://docs.roasos.com/models/dub/elevenlabs-dubbing/llms.txt) — the same facts as one plain-text file for an agent.
* `GET https://api.roasos.com/v1/catalog/elevenlabs-dubbing` — the machine-readable form: enums, defaults, limits and prices. Refer to the [API reference](/api-reference/overview).
* [Jobs](/concepts/jobs) — how to poll a job and read its result.
* Provider endpoints: `fal-ai/elevenlabs/dubbing`.