NIST OpenSAT
by NIST
Open Speech Analytic Technologies — noise-robust ASR + KWS + SAD challenge.
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TL;DR
Best for robust ASR / KWS / SAD evaluation under reverberation + noise + low-resource conditions. Pricing: paid.
Category
Open source
License
—
Stars
—
Last push
—
Pricing
paid
Platforms
LDC
What it is
NIST OpenSAT/OpenASR is the open-evaluation successor to NIST RT and IARPA Babel — covering low-resource multilingual ASR + KWS + speech-activity detection.
Best for: Robust ASR / KWS / SAD evaluation under reverberation + noise + low-resource conditions.
Watch out for: LDC-distributed · paid · government-evaluation provenance. Cite: NIST OpenSAT/OpenASR plans.
Watch out for: LDC-distributed · paid · government-evaluation provenance. Cite: NIST OpenSAT/OpenASR plans.
Install / use
Go to NIST OpenSAT www.nist.govFeatures
| Speaker diarization | No |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 20 |
| HIPAA eligible | No |
NIST OpenSAT vs Whipscribe
| Feature | NIST OpenSAT | 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 | No | Yes |
| Word timestamps | No | Yes |
| Streaming | No | No |
| Languages | 20 | 99 |
| Platforms | LDC | Web, API, MCP |
Alternatives to NIST OpenSAT
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