MIT SLS

by MIT CSAIL

MIT Spoken Language Systems Group — TIMIT + Galaxy + Jupiter origins.

TL;DR

MIT Spoken Language Systems Group — TIMIT + Galaxy + Jupiter origins.

Best for spoken dialogue systems; conversational ASR; speech understanding. Pricing: free.

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

What it is

MIT SLS co-created TIMIT and ran the Galaxy / Jupiter / Mercury dialogue systems in the 1990s — early conversational AI. Active in low-resource speech today.

Best for: Spoken dialogue systems; conversational ASR; speech understanding.
Watch out for: Academic.

Install / use

https://groups.csail.mit.edu/sls/

Features

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

MIT SLS vs Whipscribe

FeatureMIT SLSWhipscribe
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.