Brno BUT Speech

Name: Brno BUT Speech
Author: Brno University of Technology

by Brno University of Technology

Brno University of Technology speech group — DIHARD + x-vector + WeSpeaker origins.

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TL;DR

Best for speaker recognition, diarization, language identification SOTA research. Pricing: free.

What it is

BUT Speech@FIT (Brno) co-introduced the i-vector + x-vector paradigm, regularly tops DIHARD + NIST SRE leaderboards, and ships open recipes (VBx, ALIZÉ-Kaldi).

Best for: Speaker recognition, diarization, language identification SOTA research.
Watch out for: Academic research output; toolkits Apache-2.0.

Install / use

Go to Brno BUT Speech speech.fit.vutbr.cz

Features

Speaker diarization	No
Word-level timestamps	No
Streaming / real-time	No
Languages supported	0
HIPAA eligible	No

Brno BUT Speech vs Whipscribe

Feature	Brno BUT Speech	Whipscribe
Category	Open source	Transcription APIs
Pricing	free	$4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup
Speaker diarization	No	Yes
Word timestamps	No	Yes
Streaming	No	No
Languages	0	99
Platforms	Web	Web, API, MCP

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