Silero

license

MIT(OSI)

source

public

core features withheld

no

Silero VAD is MIT-licensed and, in the vendor's words, comes with no keys, registration or vendor lock; the published repository is the whole product.

• https://raw.githubusercontent.com/snakers4/silero-vad/HEAD/LICENSE recorded 2026-09-27

  LICENSE body: "MIT License" / "Copyright (c) 2020-present Silero Team".

• https://raw.githubusercontent.com/snakers4/silero-vad/HEAD/README.md recorded 2026-09-27

  "Published under permissive license (MIT) Silero VAD has zero strings attached - no telemetry, no keys, no registration, no built-in expiration, no keys or vendor lock."

PyPI downloads of silero-vad. Many engines embed the model without installing the package, and those uses are not counted.

• https://pypistats.org/api/packages/silero-vad/recent recorded 2026-09-27

  "last_month":1831401 for silero-vad.

Probably the most widely embedded VAD, but voice activity detection is a pipeline component: it produces no transcript or speech of its own.

• https://raw.githubusercontent.com/snakers4/silero-vad/HEAD/README.md recorded 2026-09-27

  "takes](https://github.com/snakers4/silero-vad/wiki/Performance-Metrics#silero-vad-performance-metrics) less than **1ms** to be processed on a single CPU thread."; "Silero VAD was trained on huge corpora that include over **6000** languages".