List Forced Alignment Models

GET 
https://api.knoxstudio.ai/v1/forced-alignment/models

Returns Forced Alignment models. Use id as model_id. Default forced_alignment. See Forced Alignment.

Authentication is optional (public catalog 60/min, cached 5 minutes; a token filters the list).

Request

This endpoint does not require any request parameters.

Request Headers

Name	Type	Required	Description
Authorization	String	No	Optional Bearer <token>. Omit for the public catalog. xi-api-key is also accepted.

cURL Example

curl -X GET https://api.knoxstudio.ai/v1/forced-alignment/models

Response

Success Response (200)

{
  "data": [
    {
      "id": "forced_alignment",
      "canonical_slug": "forced_alignment",
      "name": "ElevenLabs Forced Alignment",
      "created": 1730419200,
      "description": "Force-align spoken audio to a transcript for character- and word-level timestamps. Up to 10 hours and 675,000 characters per request. Billed per audio hour at the Speech to Text rate.",
      "chinese_description": "将语音与文本强制对齐，返回字符级和词级时间戳。单次最长 10 小时、最多 675,000 字符，按音频小时计费，费率与语音转文本相同。",
      "max_duration_seconds": 36000,
      "max_characters": 675000,
      "pricing": { "per_hour": "0.27" },
      "architecture": {
        "modality": "audio",
        "input_modalities": ["audio", "text"],
        "output_modalities": ["text"],
        "tokenizer": "elevenlabs"
      }
    }
  ]
}

Response Schema

Name	Type	Description
data[].id	string	Send as model_id.
data[].max_duration_seconds	integer	36000 (10 hours).
data[].max_characters	integer	675000.
data[].pricing.per_hour	string	USD per audio hour (0.27).

Error Responses

Validation uses HTTP 422:

{
  "detail": [
    {
      "loc": ["body", "field"],
      "msg": "…",
      "type": "value_error"
    }
  ]
}

Other errors use { "detail": "message" }.

Status	When
400	WebSocket path called without Upgrade: websocket.
401	Missing or invalid API key.
402	Insufficient credits.
403	Token is not allowed to use this model.
404	Resource not found.
422	Validation error.
429	Rate limit exceeded.
500	Internal server error.