2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Gladia Solaria-3 leads on raw accuracy; Azure Speech is fastest; Azure Speech covers the most languages; Azure Speech is cheapest.
Verdict · who wins what
Most accurate
Gladia Solaria-3
9.8% WER
Gladia
Fastest
Azure Speech
0.3× realtime
Microsoft Azure
Most languages
Azure Speech
19 languages
Microsoft Azure
Cheapest
Azure Speech
$0.0060/min
Microsoft Azure
Comparing
2 models · same benchmark
1
Azure Speech
Microsoft Azure
Azure default STT model — 140+ languages, diarization, word timestamps
2
Gladia Solaria-3
Gladia
Gladia Solaria-3 — EU-hosted batch speech-to-text tuned for the most accurate business audio across five core European languages (English, French, German, Spanish, Italian), with speaker diarization, custom vocabulary, and word-level timestamps.
Gladia Solaria-3
Azure Speech
field · 32 models
lower-left is better
general
legal
medical
noisy
—
technical
—
uk
us
Latency p99
2.0s
7.7s
Final drain
0ms
—
Real-time factor
1.01×
—
Flicker
13.2%
—
Cadence
1.7/s
—
$36.00
$60.84
1,000 hours
$360.00
$608.40
No
Auto-detect language
No
Yes
Live / streaming
Yes
No
Custom vocabulary
No
Yes
Max file size
1 GB
1000 MB
Max duration
4 h
2 h 15 min
Compliance
Is Azure Speech or Gladia Solaria-3 more accurate?
Gladia Solaria-3 is more accurate, with a 9.8% word error rate versus 15.3% for Azure Speech, on our standardized benchmark.
Which is cheaper, Azure Speech or Gladia Solaria-3?
Azure Speech is cheaper at $0.0060/min versus $0.0101/min for Gladia Solaria-3.
Should you choose Azure Speech or Gladia Solaria-3?
Choose Azure Speech for speed, lower cost, and language coverage; choose Gladia Solaria-3 for accuracy.
