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 cheapest.
Verdict · who wins what
Most accurate
Soniox STT (Async)
8.7% WER
Soniox
Fastest
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—
Most languages
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Cheapest
Soniox STT (Async)
$0.0017/min
Soniox
Comparing
2 models · same benchmark
1
Qwen3 ASR Flash
Alibaba (Qwen)
Alibaba Qwen3-ASR Flash — multilingual batch transcription (25+ languages) with word-level timestamps and automatic language detection, served from Model Studio (Singapore). Handles files up to 12 hours.
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.
Qwen3 ASR Flash
Soniox STT (Async)
field · 33 models
lower-left is better
general
legal
medical
noisy
technical
uk
us
Latency p99
7.0s
6.2s
$10.08
1,000 hours
$126.00
$100.80
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
No
No
Max file size
2 GB
No limit
Max duration
12 h
5 h
Compliance
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Is Qwen3 ASR Flash or Soniox STT (Async) more accurate?
Soniox STT (Async) is more accurate, with a 8.7% word error rate versus 12.3% for Qwen3 ASR Flash, on our standardized benchmark.
Which is cheaper, Qwen3 ASR Flash or Soniox STT (Async)?
Soniox STT (Async) is cheaper at $0.0017/min versus $0.0021/min for Qwen3 ASR Flash.
Should you choose Qwen3 ASR Flash or Soniox STT (Async)?
Soniox STT (Async) is the stronger choice overall, leading on accuracy and lower cost.
