2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Voxtral Mini Transcribe leads on raw accuracy; GPT-4o Transcribe Diarize covers the most languages; Voxtral Mini Transcribe is cheapest.
Verdict · who wins what
Most accurate
Voxtral Mini Transcribe
13.7% WER
Mistral (Voxtral)
Fastest
—
—
Most languages
GPT-4o Transcribe Diarize
12 languages
OpenAI
Cheapest
Voxtral Mini Transcribe
$0.0030/min
Mistral (Voxtral)
Comparing
2 models · same benchmark
1
Voxtral Mini Transcribe
Mistral (Voxtral)
Mistral Voxtral Mini Transcribe — EU-hosted batch transcription with speaker diarization, segment timestamps, and custom vocabulary (context bias). Strong accuracy at very low cost; handles recordings up to 3 hours.
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
Voxtral Mini 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
2.3s
18.1s
$18.00
$36.00
1,000 hours
$180.00
$360.00
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
Yes
No
Compliance
Is Voxtral Mini Transcribe or GPT-4o Transcribe Diarize more accurate?
Voxtral Mini Transcribe is more accurate, with a 13.7% word error rate versus 19.7% for GPT-4o Transcribe Diarize, on our standardized benchmark.
Which is cheaper, Voxtral Mini Transcribe or GPT-4o Transcribe Diarize?
Voxtral Mini Transcribe is cheaper at $0.0030/min versus $0.0060/min for GPT-4o Transcribe Diarize.
Should you choose Voxtral Mini Transcribe or GPT-4o Transcribe Diarize?
Choose Voxtral Mini Transcribe for accuracy and lower cost; choose GPT-4o Transcribe Diarize for language coverage.
