whisper-diarization

Automatic Speech Recognition with Speaker Diarization based on OpenAI Whisper

EstablishedOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Stable

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is whisper-diarization?

Whisper-Diarization is an open-source library that extends the capabilities of OpenAI's Whisper model to include speaker diarization, allowing for accurate transcription and identification of speakers in audio files.

Key differentiator

Whisper-Diarization stands out by offering an open-source solution that integrates speaker diarization with the robust speech recognition capabilities of OpenAI's Whisper, making it a powerful tool for developers and researchers dealing with multi-speaker audio content.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Automatic speech recognition with speaker diarizationmedium

Built on top of OpenAI's Whisper modelmedium

Open-source and customizablemedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited documentation and examples for advanced use caseshigh

Official documentation lacks detailed guides on customizing speaker diarization parameters

Performance issues with large audio filesmedium

Processing times significantly increase and can lead to memory exhaustion for files longer than 1 hour

Fit analysis

Who is it for?

✓ Best for

Developers working on applications that require accurate speaker identification and transcription from audio inputs.

Researchers conducting studies on multi-speaker conversations where automated diarization is crucial.

✕ Not a fit for

Projects requiring real-time processing of audio streams, as Whisper-Diarization processes files post-recording.

Applications needing support for languages not covered by the underlying Whisper model.

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with whisper-diarization

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →