2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Soniox STT (Async) leads on raw accuracy; Soniox STT (Async) is fastest; Soniox STT (Async) covers the most languages; Soniox STT (Async) is cheapest.
Verdict · who wins what
Most accurate
Soniox STT (Async)
8.7% WER
Soniox
Fastest
Soniox STT (Async)
0.1× realtime
Soniox
Most languages
Soniox STT (Async)
25 languages
Soniox
Cheapest
Soniox STT (Async)
$0.0017/min
Soniox
Comparing
2 models · same benchmark
1
Whisper Large V3
Groq
OpenAI Whisper large-v3 served on Groq's LPU hardware — top Whisper accuracy at Groq speed and cost, with word-level timestamps and automatic language detection.
2
Soniox STT (Async)
Soniox
Soniox async batch transcription — one multilingual model across 60+ languages with speaker diarization, per-word timestamps, and automatic language identification, at a low flat token-based rate.
Soniox STT (Async)
Whisper Large V3
field · 33 models
lower-left is better
general
legal
medical
noisy
technical
uk
us
Latency p99
3.6s
6.2s
$10.08
1,000 hours
$111.60
$100.80
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
No
No
Max file size
100 MB
No limit
Max duration
No limit
5 h
Compliance
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Is Whisper Large V3 or Soniox STT (Async) more accurate?
Soniox STT (Async) is more accurate, with a 8.7% word error rate versus 14.4% for Whisper Large V3, on our standardized benchmark.
Which is cheaper, Whisper Large V3 or Soniox STT (Async)?
Soniox STT (Async) is cheaper at $0.0017/min versus $0.0019/min for Whisper Large V3.
Should you choose Whisper Large V3 or Soniox STT (Async)?
Soniox STT (Async) is the stronger choice overall, leading on accuracy, speed, lower cost, and language coverage.
