2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Soniox STT (Async) leads on raw accuracy; Gladia Solaria-1 (Realtime) is fastest; Soniox STT (Async) is cheapest.
Verdict · who wins what
Most accurate
Soniox STT (Async)
8.7% WER
Soniox
Fastest
Gladia Solaria-1 (Realtime)
0.2× realtime
Gladia
Most languages
—
—
Cheapest
Soniox STT (Async)
$0.0017/min
Soniox
Comparing
2 models · same benchmark
1
Gladia Solaria-1 (Realtime)
Gladia
Gladia Solaria-1 — EU-hosted real-time streaming speech-to-text across 100+ languages with native code-switching and ~103ms partial latency. Word-level timestamps and automatic language identification; speaker diarization is available for batch (Solaria-3), not this streaming model.
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.
general
—
legal
—
medical
—
noisy
—
technical
—
uk
—
us
—
—
6.2s
Final drain
191ms
—
Real-time factor
1.06×
—
Flicker
89.9%
—
Cadence
1.4/s
—
$10.08
1,000 hours
$748.80
$100.80
No
Auto-detect language
Yes
Yes
Live / streaming
Yes
No
Custom vocabulary
No
No
Max file size
1000 MB
No limit
Max duration
2 h 15 min
5 h
Compliance
—
Is Gladia Solaria-1 (Realtime) or Soniox STT (Async) more accurate?
Soniox STT (Async) has a published benchmark at 8.7% word error rate. Gladia Solaria-1 (Realtime) has not been benchmarked yet.
Which is cheaper, Gladia Solaria-1 (Realtime) or Soniox STT (Async)?
Soniox STT (Async) is cheaper at $0.0017/min versus $0.0125/min for Gladia Solaria-1 (Realtime).
Should you choose Gladia Solaria-1 (Realtime) or Soniox STT (Async)?
Choose Gladia Solaria-1 (Realtime) for speed; choose Soniox STT (Async) for accuracy and lower cost.
