DIHARD III
by LDC / DIHARD organizers
Hard diarization-in-the-wild challenge — 11 domains from courtrooms to maps.
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TL;DR
Best for state-of-the-art diarization across 11 challenging domains (clinical, broadcast, courtroom, etc.). Pricing: paid.
Category
Open source
License
—
Stars
—
Last push
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Pricing
paid
Platforms
LDC
What it is
DIHARD III is the third Diarization Hard challenge — 11 domains designed to stress-test diarization, including clinical interviews, courtrooms, maps task, and YouTube. License: LDC paid.
Best for: State-of-the-art diarization across 11 challenging domains (clinical, broadcast, courtroom, etc.).
Watch out for: LDC license · paid for non-members · 11 conversation domains. Cite: Ryant et al., Interspeech 2021.
Watch out for: LDC license · paid for non-members · 11 conversation domains. Cite: Ryant et al., Interspeech 2021.
Install / use
Go to DIHARD III catalog.ldc.upenn.eduFeatures
| Speaker diarization | Yes |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 1 |
| HIPAA eligible | No |
DIHARD III vs Whipscribe
| Feature | DIHARD III | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | paid | $4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup |
| Speaker diarization | Yes | Yes |
| Word timestamps | No | Yes |
| Streaming | No | No |
| Languages | 1 | 99 |
| Platforms | LDC | Web, API, MCP |
Alternatives to DIHARD III
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