CMU LTI

by Carnegie Mellon University

Carnegie Mellon Language Technologies Institute — Sphinx + ESPnet + YODAS origins.

TL;DR

Carnegie Mellon Language Technologies Institute — Sphinx + ESPnet + YODAS origins.

Best for speech + NLP foundational research; multilingual ASR. Pricing: free.

Category
Open source
License
—
Stars
—
Last push
—
Pricing
free
Platforms
Web

What it is

CMU LTI shipped CMU Sphinx in 1986, co-founded ESPnet, and built YODAS / WAVLab in 2023-2024. One of the four foundational US speech-research institutions.

Best for: Speech + NLP foundational research; multilingual ASR.
Watch out for: Academic.

Install / use

https://lti.cs.cmu.edu/

Features

Speaker diarizationNo
Word-level timestampsNo
Streaming / real-timeNo
Languages supported0
HIPAA eligibleNo

CMU LTI vs Whipscribe

FeatureCMU LTIWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfreefree beta
Speaker diarizationNoYes
Word timestampsNoYes
StreamingNoNo
Languages099
PlatformsWebWeb, API, MCP

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Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.