2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Amazon Transcribe leads on raw accuracy; Amazon Transcribe is fastest; Amazon Transcribe covers the most languages.
Verdict · who wins what
Most accurate
Amazon Transcribe
19.4% WER
Amazon Web Services
Fastest
Amazon Transcribe
0.4× realtime
Amazon Web Services
Most languages
Amazon Transcribe
77 languages
Amazon Web Services
Cheapest
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—
Comparing
2 models · same benchmark
1
Amazon Transcribe
Amazon Web Services
AWS foundation model-powered ASR — 100+ languages
2
GPT-4o Transcribe Diarize
OpenAI
GPT-4o transcription with built-in speaker diarization
30-day benchmark average
overall WER vs price
GPT-4o Transcribe Diarize
Amazon Transcribe
field · 26 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
13.0s
18.1s
$36.00
$36.00
1,000 hours
$360.00
$360.00
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
No
No
Compliance
Is Amazon Transcribe or GPT-4o Transcribe Diarize more accurate?
Amazon Transcribe is more accurate, with a 19.4% word error rate versus 19.7% for GPT-4o Transcribe Diarize, on our standardized benchmark.
Which is cheaper, Amazon Transcribe or GPT-4o Transcribe Diarize?
Amazon Transcribe and GPT-4o Transcribe Diarize cost the same at $0.0060/min.
Should you choose Amazon Transcribe or GPT-4o Transcribe Diarize?
Amazon Transcribe is the stronger choice overall, leading on accuracy, speed, and language coverage.
