Open-Source AI · Speech (STT / TTS)

Kokoro vs Silero VAD

Kokoro vs Silero VAD compared for 2026 — features, license, ease of use, performance and which one to choose. Tiny 82M TTS with astonishing quality vs Detect speech in audio, instantly.

Updated regularly · curated by OpenSourceAI.tech

Choose Kokoro for fast, lightweight production TTS. Choose Silero VAD for real-time voice assistants.

Kokoro vs Silero VAD at a glance

SpecKokoroSilero VAD
CategorySpeech (STT / TTS)Speech (STT / TTS)
TypeText-to-speech (model)Voice activity detection
LicenseApache-2.0MIT
Runs locallyYesYes
Primary languagePythonPython
Ease of useBeginnerBeginner
Best forfast, lightweight production TTSreal-time voice assistants
GitHub stars

How Kokoro and Silero VAD score

🤝 Too close to call — Kokoro and Silero VAD land within a hair (5.0 vs 5.0 / 5). Pick on fit, not on score.
CriterionKokoroSilero VAD
Popularityn/an/a
Maintenancen/an/a
Ease of use5.05.0
Privacy5.05.0
License freedom5.05.0

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

Kokoro

Text-to-speech (model) · Apache-2.0

Kokoro is an 82-million-parameter TTS model that rivals far larger systems: near-instant synthesis, multiple voices and languages, deployable anywhere from servers to browsers.

  • Remarkable quality at only 82M parameters
  • Real-time synthesis even on CPU
  • Permissive Apache license for products
Visit Kokoro →

Silero VAD

Voice activity detection · MIT

Silero VAD detects which parts of an audio stream contain speech, in under a millisecond per chunk — essential for real-time voice pipelines.

  • Sub-millisecond detection
  • Tiny model, runs anywhere
  • Essential for streaming voice
Visit Silero VAD →

Key differences

Kokoro is text-to-speech (model), while Silero VAD is voice activity detection. Their licenses differ (Apache-2.0 vs MIT), which matters if you ship a commercial product. In short, Kokoro fits fast, lightweight production TTS, and Silero VAD fits real-time voice assistants.

Which should you choose?

Choose Kokoro for fast, lightweight production TTS. Choose Silero VAD for real-time voice assistants.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is Kokoro or Silero VAD easier to use?

Both sit at a similar level (Beginner). Your choice should come down to fit rather than difficulty.

Are Kokoro and Silero VAD free?

Kokoro is free and open source (Apache-2.0), and Silero VAD is free and open source (MIT). Neither charges for the core software.

Can I run Kokoro and Silero VAD locally?

Kokoro: yes · Silero VAD: yes. Both can be used without sending your data to a third-party cloud where their setup allows.

Kokoro vs Silero VAD — which should I pick in 2026?

Choose Kokoro for fast, lightweight production TTS. Choose Silero VAD for real-time voice assistants.

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