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Elevenlabs - Forced Alignment

Integrate

Model id elevenlabs/forced-alignment
# 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/elevenlabs/forced-alignment?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "text": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# 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"

Files like the example: $0.22 220 API credits your files are measured before the run Run it on this page

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ElevenLabs Speech to Text #forced-alignment#speech-to-text

Aligns a known transcript to an audio recording and returns word and character timing

ElevenLabs · Data (JSON)

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required 88 / 675000

Transcript whose text is to be aligned to the audio.

•required audio_url
Drop a file, or

Provide the alignment audio through a file URL, subject to limits of 10 hours in duration and 3 GB in size.

POST /run/elevenlabs/forced-alignment?wait=20 quote → $0.22
# 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/elevenlabs/forced-alignment?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "text": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# 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"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About Elevenlabs - Forced Alignment

Matches a transcript you already have against its recording. Provide `audio_url` and `text`, where the text can be up to 675,000 characters. The audio file can be up to 3 GB and 10 hours long. The output lists character-level and word-level alignment plus an average alignment loss.

Parameters

Send either the canonical name or the native name, not both. Canonical names

NameType DefaultAllowed Description
audio_urlrequired audio
Typeurl · audio
Provide the alignment audio through a file URL, subject to limits of 10 hours in duration and 3 GB in size.
textrequired
Typestring
≤ 675,000 characters
Transcript whose text is to be aligned to the audio.
required Canonical name, also accepted

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "elevenlabs/forced-alignment",
  "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": 220,
    "usd": "0.22",
    "charged": 220,
    "refunded": 0
  },
  "input": {
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "text": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "characters": [
      {
        "text": "string",
        "start": 1.0,
        "end": 1.0
      }
    ],
    "words": [
      {
        "text": "string",
        "start": 1.0,
        "end": 1.0,
        "loss": 1.0
      }
    ],
    "loss": 1.0
  },
  "outputs": [
    {
      "type": "file",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "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"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
characters
array of object {text, start, end}Alignment information for individual characters.
words
array of object {text, start, end, loss}Alignment information for individual words.
loss
numberMean alignment loss across the transcript.

More models: Speech to Text

For AI agents: this page as Markdown is at https://doitong.com/developers/models/elevenlabs/forced-alignment.md. All models and guides: https://doitong.com/developers/llms.txt