--- title: README emoji: 🚀 colorFrom: yellow colorTo: green sdk: static pinned: false --- ![Identify who speaks when with pyannote](https://github.com/pyannote/.github/raw/main/profile/banner.jpg) ## 💚 Simply detect, segment, label, and separate speakers in any language

[pyannoteAI](https://www.pyannote.ai/) facilitates the understanding of speakers and conversation context. We focus on identifying speakers and conversation metadata under conditions that reflect real conversations rather than controlled recordings. ### 🎤 What is speaker diarization? ![Diarization](https://github.com/pyannote/.github/raw/main/profile/diarization.jpg) **Speaker diarization** is the process of automatically partitioning the audio recording of a conversation into segments and labeling them by speaker, answering the question **"who spoke when?"**. As the **foundational layer of conversational AI**, speaker diarization provides high-level insights for human-human and human-machine conversations, and unlocks a wide range of downstream applications: meeting transcription, call center analytics, voice agents, video dubbing. ### ▶️ Getting started Install [`pyannote.audio`](https://github.com/pyannote/pyannote-audio) latest release available from ![Latest release](https://img.shields.io/pypi/v/pyannote-audio?color=059669) with either `uv` (recommended) or `pip`: ```bash $ uv add pyannote.audio $ pip install pyannote.audio ``` Enjoy state-of-the-art speaker diarization: ```python # download pretrained pipeline from Huggingface from pyannote.audio import Pipeline pipeline = Pipeline.from_pretrained('pyannote/speaker-diarization-community-1', token="HUGGINGFACE_TOKEN") # perform speaker diarization locally output = pipeline('/path/to/audio.wav') # enjoy state-of-the-art speaker diarization for turn, speaker in output.speaker_diarization: print(f"{speaker} speaks between t={turn.start}s and t={turn.end}s") ``` Read [`community-1` model card](https://hf.co/pyannote/speaker-diarization-community-1) to make the most of it. ### 🏆 State-of-the-art models [`pyannoteAI`](https://www.pyannote.ai/) research team trains cutting-edge speaker diarization models, thanks to [**Jean Zay**](http://www.idris.fr/eng/jean-zay/) 🇫🇷 supercomputer managed by [**GENCI**](https://www.genci.fr/) 💚. They come in two flavors: * [`pyannote.audio`](https://github.com/pyannote/pyannote-audio) open models available on [Huggingface](https://hf.co/pyannote) and used by 140k+ developers over the world ; * premium models available on [`pyannoteAI` cloud](https://dashboard.pyannote.ai) (and on-premise for enterprise customers) that provide state-of-the-art speaker diarization as well as additional enterprise features. | Benchmark (last updated in 2025-09) | `legacy` (3.1)| `community-1` | `precision-2` | | --------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ | -------------------------------------------------| ------------------------------------------------ | | [AISHELL-4](https://arxiv.org/abs/2104.03603) | 12.2 | 11.7 | 11.4 🏆 | | [AliMeeting](https://www.openslr.org/119/) (channel 1) | 24.5 | 20.3 | 15.2 🏆| | [AMI](https://groups.inf.ed.ac.uk/ami/corpus/) (IHM) | 18.8 | 17.0 | 12.9 🏆| | [AMI](https://groups.inf.ed.ac.uk/ami/corpus/) (SDM) | 22.7 | 19.9 | 15.6 🏆 | | [AVA-AVD](https://arxiv.org/abs/2111.14448) | 49.7 | 44.6 | 37.1 🏆 | | [CALLHOME](https://catalog.ldc.upenn.edu/LDC2001S97) ([part 2](https://github.com/BUTSpeechFIT/CALLHOME_sublists/issues/1)) | 28.5 | 26.7 | 16.6 🏆 | | [DIHARD 3](https://catalog.ldc.upenn.edu/LDC2022S14) ([full](https://arxiv.org/abs/2012.01477)) | 21.4 | 20.2 | 14.7 🏆 | | [Ego4D](https://arxiv.org/abs/2110.07058) (dev.) | 51.2 | 46.8 | 39.0 🏆 | | [MSDWild](https://github.com/X-LANCE/MSDWILD) | 25.4 | 22.8 | 17.3 🏆 | | [RAMC](https://www.openslr.org/123/) | 22.2 | 20.8 | 10.5 🏆 | | [REPERE](https://www.islrn.org/resources/360-758-359-485-0/) (phase2) | 7.9 | 8.9 | 7.4 🏆 | | [VoxConverse](https://github.com/joonson/voxconverse) (v0.3) | 11.2 | 11.2 | 8.5 🏆 | __[Diarization error rate](http://pyannote.github.io/pyannote-metrics/reference.html#diarization) (in %, the lower, the better)__ Our models achieve competitive performance across multiple public diarization datasets, explore pyannoteAI performance benchmark ➡️ [https://www.pyannote.ai/benchmark](https://www.pyannote.ai/benchmark) ### ⏩️ Going further, better, and faster [`precision-2`](https://www.pyannote.ai/blog/precision-2) premium model further improves accuracy, processing speed, as well as brings additional features. | Features | `community-1` | `precision-2` | | -------------- | ----------- | ----------- | | Set exact/min/max number of speakers | ✅ | ✅ | | Exclusive speaker diarization (for transcription) | ✅ | ✅ | | Segmentation confidence scores | ❌ | ✅ | | Speaker confidence scores | ❌ | ✅ | | Voiceprinting | ❌ | ✅ | | Speaker identification | ❌ | ✅ | | STT Orchestration | ❌ | ✅ | | Time to process 1h of audio (on H100) | 37s | 14s | Create a [`pyannoteAI`](https://dashboard.pyannote.ai) account, change one line of code, and enjoy free cloud credits to try [`precision-2`](https://pyannote.ai/blog/precision-2) premium diarization: ```python # perform premium speaker diarization on pyannoteAI cloud pipeline = Pipeline.from_pretrained('pyannote/speaker-diarization-precision-2', token="PYANNOTEAI_API_KEY") better_output = pipeline('/path/to/audio.wav') ``` ### 🔌 Get speaker-attributed transcripts We host open-source transcription models like [**Nvidia Parakeet-tdt-0.6b-v3**](https://huggingface.co/nvidia/parakeet-tdt-0.6b-v3) and [**OpenAI whisper-large-v3-turbo**](https://huggingface.co/dropbox-dash/faster-whisper-large-v3-turbo) with specialized STT + diarization reconciliation logic for speaker-attributed transcripts. STT orchestration orchestrates pyannoteAI diarization `Precision-2` with transcription services. Instead of running diarization and transcription separately, then reconciling outputs manually, you make one API call and receive speaker-attributed transcripts. ![STT Orchestration](https://github.com/pyannote/.github/raw/main/profile/stt-orchestration.png) To use this feature, make a request to the diarize API endpoint with the `transcription:true` flag. ```python # pip install pyannoteai-sdk from pyannoteai.sdk import Client client = Client("your-api-key") job_id = client.diarize( "[https://www.example/audio.wav](https://www.example/audio.wav)", transcription=True) job_output = client.retrieve(job_id) for word in job_output['output']['wordLevelTranscription']: print(word['start'], word['end'], word['speaker'], word['text']) for turn in job_output['output']['turnLevelTranscription']: print(turn['start'], turn['end'], turn['speaker'], turn['text'])