Documentation Index
Fetch the complete documentation index at: /llms.txt
Use this file to discover all available pages before exploring further.
Transcribe audio with xAI Grok, with optional speaker diarization and word timestamps. See parameters, pricing, and API examples.
xai/grok-stt
| Unit | Price |
|---|---|
| Per hour of audio | $0.05 |
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
audio_url | string | Yes | — | Public URL of the audio file to transcribe. Supported: mp3, wav, ogg, opus, flac, aac, mp4, m4a, mkv |
language | string | No | — | Language code hint (for example en, fr, de). Omit to auto-detect |
diarize | boolean | No | false | Label each word with the detected speaker |
audio_url must be publicly reachable; a URL that cannot be fetched is rejected with a 422 before the task starts.curl -X POST https://api.unifically.com/v1/tasks \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "xai/grok-stt",
"input": {
"audio_url": "https://example.com/interview.mp3",
"diarize": true
}
}'
{
"code": 200,
"success": true,
"data": {
"task_id": "abc123def456",
"status": "processing"
}
}
GET /v1/tasks/{task_id} until status is completed:
{
"code": 200,
"success": true,
"data": {
"task_id": "abc123def456",
"status": "completed",
"output": {
"text": "Thanks for joining us today. Let's get started.",
"language": "en",
"duration": 4.8,
"words": [
{ "word": "Thanks", "start": 0.0, "end": 0.42 },
{ "word": "for", "start": 0.42, "end": 0.55 }
]
}
}
}
| Field | Type | Description |
|---|---|---|
text | string | Full transcript |
language | string | Detected (or supplied) language code |
duration | number | Length of the audio in seconds |
words | array | Per-word timing. With diarize: true, each word also carries its speaker label |