Fairseq

by Meta AI

Meta's seq-to-seq toolkit — home of wav2vec, HuBERT, XLS-R, MMS.

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Upstream is archived. Fairseq’s repository has been set read-only by its owner, so there are no further releases, fixes, or security patches. The last commit landed 2025-09-30. It can still be cloned and run, and forks may be maintained elsewhere. See the repository.

TL;DR

Best for researchers needing the original implementations of wav2vec / HuBERT / MMS. Pricing: free.

Category
Open source
License
MIT
Stars
★ 32.2k
Last push
2025-09-30
Pricing
free
Platforms
Linux

What it is

The canonical research codebase for many SOTA speech encoders. MIT.

Best for: Researchers needing the original implementations of wav2vec / HuBERT / MMS.
Watch out for: Maintenance-mode in favor of fairseq2; old PyTorch versions; setup pain.

Install / use

pip install fairseq

Features

Speaker diarizationNo
Word-level timestampsYes
Streaming / real-timeNo
Languages supported100
HIPAA eligibleNo

Links

GitHub repo ↗

Fairseq vs Whipscribe

FeatureFairseqWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfree$4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup
Speaker diarizationNoYes
Word timestampsYesYes
StreamingNoNo
Languages10099
PlatformsLinuxWeb, API, MCP

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