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; Amazon Transcribe is cheapest.
Verdict · who wins what
Most accurate
Amazon Transcribe
13.0% WER
Amazon Web Services
Fastest
Amazon Transcribe
0.4× realtime
Amazon Web Services
Most languages
Amazon Transcribe
77 languages
Amazon Web Services
Cheapest
Amazon Transcribe
$0.0060/min
Comparing
2 models · same benchmark
1
Universal-3.5 Pro Realtime
AssemblyAI
AssemblyAI Universal-3.5 Pro Realtime — the flagship streaming model, with native mid-sentence code-switching across 18 languages and conversation context carried across turns. Word-level timestamps and stable partials that are not rewritten as they arrive; speaker diarization is available on the batch model, not this streaming one.
2
Amazon Transcribe
Amazon Web Services
AWS foundation model-powered ASR — 100+ languages
30-day benchmark average
overall WER vs price
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
—
—
13.0s
Final drain
109ms
—
Real-time factor
1.02×
—
Flicker
15.7%
—
Cadence
0.8/s
—
$36.00
1,000 hours
$450.00
$360.00
Yes
Auto-detect language
Yes
Yes
Live / streaming
Yes
No
Custom vocabulary
No
No
Compliance
Amazon Web Services
Is Universal-3.5 Pro Realtime or Amazon Transcribe more accurate?
Amazon Transcribe has a published benchmark at 13.0% word error rate. Universal-3.5 Pro Realtime has not been benchmarked yet.
Which is cheaper, Universal-3.5 Pro Realtime or Amazon Transcribe?
Amazon Transcribe is cheaper at $0.0060/min versus $0.0075/min for Universal-3.5 Pro Realtime.
Should you choose Universal-3.5 Pro Realtime or Amazon Transcribe?
Amazon Transcribe is the stronger choice overall, leading on accuracy, speed, lower cost, and language coverage.
