Vellium & Co

Directory › AI model answers › Speech-to-text

Speech-to-text

Transcribe audio to text using OpenAI (gpt-transcribe). Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. Add diarize:true for speaker labels and word timestamps (ElevenLabs Scribe v2, same price). No API key

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
196 ms
Price
$0.030 per call
Paying buyers, last 30 days
4 (directory's own records)
Paid calls, last 30 days
43
Category
AI model answers
Address
https://agent402.tools/api/transcribe

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/e80d128b3dc5.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].