Microsoft AI · Transcription model

MAI-Transcribe 2

microsoft/mai-transcribe-2

Transcription

Released Sep 3, 2026

MAI-Transcribe 2 is a multilingual speech-to-text model from Microsoft AI, ranked #1 on the FLEURS multilingual benchmark. It supports 60 languages with automatic language identification, code switching for mixed-language speech,...

Specifications

Input: wav, mp3, flac, m4a, ogg, webm, aac, opus · base64 JSON, multipart file or URL · up to 25 MB
Output: text; verbose_json adds language, duration, segments and word timestamps
Billing: per second of audio

Use it

POST /api/v1/audio/transcriptions · MCP transcribe · full reference

curl https://omnirail.org/api/v1/audio/transcriptions \
  -H "Authorization: Bearer $OMNIRAIL_KEY" \
  -F model=microsoft/mai-transcribe-2 \
  -F file=@meeting.mp3