pyannote

license

MIT(OSI)

source

public

core features withheld

yes

pyannote.audio is MIT-licensed, but its most accurate pipeline, precision-2, is a paid pyannoteAI service reached through the same library with an API key. The open community-1 pipeline is complete on its own; the premium tier is withheld from the published source, which makes this open core.

• https://raw.githubusercontent.com/pyannote/pyannote-audio/HEAD/LICENSE recorded 2026-09-27

  LICENSE body: "MIT License" / "Copyright (c) 2020 CNRS".

• https://raw.githubusercontent.com/pyannote/pyannote-audio/HEAD/README.md recorded 2026-09-27

  README: "built-in support for [pyannoteAI](https://pyannote.ai) premium speaker diarization"; the paid precision-2 pipeline also exists as a self-hosted product the open repository cannot build: "premium pipeline further improves accuracy as well as processing speed (in its self-hosted version)."

PyPI downloads of pyannote.audio, only just above one million a month.

• https://pypistats.org/api/packages/pyannote.audio/recent recorded 2026-09-27

  "last_month":1000046 for pyannote.audio.

The reference open diarization toolkit, but diarization is its single task.

• https://raw.githubusercontent.com/pyannote/pyannote-audio/HEAD/README.md recorded 2026-09-27

  "is an open-source toolkit written in Python for speaker diarization"; the Benchmark section reports "[Diarization error rate]".