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Voxtral Mini Transcribe vs GPT-4o Mini Transcribe

2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Voxtral Mini Transcribe leads on raw accuracy; Voxtral Mini Transcribe is fastest; GPT-4o Mini Transcribe covers the most languages.

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Verdict · who wins what

Most accurate

Voxtral Mini Transcribe

12.7% WER

Mistral (Voxtral)

Fastest

Voxtral Mini Transcribe

0.2× realtime

Mistral (Voxtral)

Most languages

GPT-4o Mini Transcribe

98 languages

OpenAI

Cheapest

—

—

Comparing

2 models · same benchmark

1

Batch

Voxtral Mini Transcribe

Mistral (Voxtral)

$0.0030/min
#7 · 80.7

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.

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2

Batch

GPT-4o Mini Transcribe

OpenAI

$0.0030/min
#9 · 81.1

GPT-4o Mini optimized for fast transcription

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Overview

30-day benchmark average

Overall score

0–100

80.7

81.1

Accuracy rank

of 35

#7

#9

Word error rate

WER

12.7%

13.6%

Character error rate

CER

8.0%

9.3%

Match error rate

MER

11.5%

12.8%

Word info lost

WIL

15.8%

17.8%

Languages

8

98

Cost vs. accuracy

overall WER vs price

GPT-4o Mini Transcribe

Voxtral Mini Transcribe

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

21.0%
18.6%

conversational

10.0%
12.4%

finance

6.8%
6.0%

general

6.1%
11.2%

legal

3.1%
4.9%

medical

6.3%
3.5%

noisy

47.4%
40.8%

technical

5.6%
4.0%

Accuracy by accent

WER · English

african

27.7%
29.2%

australian

6.2%
12.3%

indian

12.7%
20.6%

uk

3.0%
7.5%

us

0.0%
18.9%

Speed & latency

p50 → p99

Processing speed

× realtime

0.2×

0.1×

Latency p50

2.3s

2.0s

Latency p90

2.3s

2.4s

Latency p99

2.3s

2.4s

Realtime / streaming

Streaming benchmark averages

Realtime rank

—

—

Realtime score

0–100

—

—

Time to first word

—

—

Final drain

—

—

Real-time factor

—

—

Flicker

—

—

Cadence

—

—

Reliability

Rolling 30 days

Uptime

100.00%

100.00%

Error rate

0.00%

0.00%

Pricing

billed per second

Rate

per minute

$0.0030

$0.0030

Billing granularity

per 1s

per 1s

1 hour of audio

$0.18

$0.18

100 hours

$18.00

$18.00

1,000 hours

$180.00

$180.00

Capabilities

Feature support

Speaker diarization

Yes

No

Word-level timestamps

Yes

No

Code-switching

No

No

Auto-detect language

Yes

Yes

Live / streaming

No

No

Custom vocabulary

Yes

No

Coverage & deployment

Languages · formats · regions

Languages

8

98

Mode

Batch

Batch

Region

France

United States

Audio formats

mp3
wav
flac
m4a
ogg
webm
mp3
wav
flac
m4a
ogg
webm

Max file size

No limit

25 MB

Max duration

15 min

No limit

Compliance

GDPR
SOC2
GDPR

Frequently asked questions

Is Voxtral Mini Transcribe or GPT-4o Mini Transcribe more accurate?

Voxtral Mini Transcribe is more accurate, with a 12.7% word error rate versus 13.6% for GPT-4o Mini Transcribe, on our standardized benchmark.

Which is cheaper, Voxtral Mini Transcribe or GPT-4o Mini Transcribe?

Voxtral Mini Transcribe and GPT-4o Mini Transcribe cost the same at $0.0030/min.

Should you choose Voxtral Mini Transcribe or GPT-4o Mini Transcribe?

Choose Voxtral Mini Transcribe for accuracy and speed; choose GPT-4o Mini Transcribe for language coverage.