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; Whisper Large V3 Turbo 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
Whisper Large V3 Turbo
$0.0007/min
Groq
Comparing
2 models · same benchmark
1
Whisper Large V3 Turbo
Groq
OpenAI Whisper large-v3-turbo served on Groq's LPU hardware — very fast, very low cost batch transcription 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.
30-day benchmark average
overall WER vs price
field · 27 models
lower-left is better
WER · lower is better
WER · English
p50 → p99
Streaming benchmark averages
Rolling 30 days
billed per second
Feature support
Languages · formats · regions
general
legal
medical
noisy
technical
uk
us
Latency p99
3.4s
6.2s
$3.96
$10.08
1,000 hours
$39.60
$100.80
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
No
No
Compliance
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Is Whisper Large V3 Turbo or Soniox STT (Async) more accurate?
Soniox STT (Async) is more accurate, with a 8.7% word error rate versus 14.3% for Whisper Large V3 Turbo, on our standardized benchmark.
Which is cheaper, Whisper Large V3 Turbo or Soniox STT (Async)?
Whisper Large V3 Turbo is cheaper at $0.0007/min versus $0.0017/min for Soniox STT (Async).
Should you choose Whisper Large V3 Turbo or Soniox STT (Async)?
Choose Whisper Large V3 Turbo for lower cost; choose Soniox STT (Async) for accuracy, speed, and language coverage.
