2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Gemini 3.5 Transcribe leads on raw accuracy; Gemini 3.5 Transcribe is fastest; Gemini 3.5 Transcribe covers the most languages; Gemini 3.5 Transcribe is cheapest.
Verdict · who wins what
Most accurate
Gemini 3.5 Transcribe
10.4% WER
Google Gemini
Fastest
Gemini 3.5 Transcribe
1.0× realtime
Google Gemini
Most languages
Gemini 3.5 Transcribe
72 languages
Google Gemini
Cheapest
Gemini 3.5 Transcribe
$0.0050/min
Google Gemini
Comparing
2 models · same benchmark
1
Azure Speech
Microsoft Azure
Azure default STT model — 140+ languages, diarization, word timestamps
2
Gemini 3.5 Transcribe
Google Gemini
Google Gemini batch transcription with word timestamps, optional speaker labels and custom vocabulary.
general
legal
medical
noisy
technical
uk
us
Latency p99
2.0s
5.1s
Final drain
0ms
—
Real-time factor
1.01×
—
Flicker
13.2%
—
Cadence
1.7/s
—
$30.24
1,000 hours
$360.00
$302.40
Yes
Auto-detect language
No
Yes
Live / streaming
Yes
No
Custom vocabulary
No
Yes
Max file size
1 GB
No limit
Max duration
4 h
30 min
Compliance
—
Is Azure Speech or Gemini 3.5 Transcribe more accurate?
Gemini 3.5 Transcribe is more accurate, with a 10.4% word error rate versus 15.3% for Azure Speech, on our standardized benchmark.
Which is cheaper, Azure Speech or Gemini 3.5 Transcribe?
Gemini 3.5 Transcribe is cheaper at $0.0050/min versus $0.0060/min for Azure Speech.
Should you choose Azure Speech or Gemini 3.5 Transcribe?
Gemini 3.5 Transcribe is the stronger choice overall, leading on accuracy, speed, lower cost, and language coverage.
