Reverb (Rev.com OSS)

by Rev.com

Rev's open WFST-decoded ASR + diarization stack.

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TL;DR

Best for reproducing the public results from Rev's 200k-hour English ASR. Pricing: free.

Category
Open source
License
Apache-2.0
Stars
★ 436
Last push
2025-04-22
Pricing
free
Platforms
Linux

What it is

Rev's open-sourced production ASR + diarization, released 2024. Apache-2.0.

Best for: Reproducing the public results from Rev's 200k-hour English ASR.
Watch out for: English-only; large checkpoints; CPU inference slow.

Install / use

git clone https://github.com/revdotcom/reverb

Features

Speaker diarizationYes
Word-level timestampsYes
Streaming / real-timeNo
Languages supported1
HIPAA eligibleNo

Links

GitHub repo ↗

Reverb (Rev.com OSS) vs Whipscribe

FeatureReverb (Rev.com OSS)Whipscribe
CategoryOpen sourceTranscription APIs
Pricingfree$4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup
Speaker diarizationYesYes
Word timestampsYesYes
StreamingNoNo
Languages199
PlatformsLinuxWeb, API, MCP

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