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Whisper Large V3 vs Speechmatics Enhanced

2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Speechmatics Enhanced leads on raw accuracy; Whisper Large V3 is fastest; Whisper Large V3 covers the most languages; Whisper Large V3 is cheapest.

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Verdict · who wins what

Most accurate

Speechmatics Enhanced

12.3% WER

Speechmatics

Fastest

Whisper Large V3

0.3× realtime

OpenAI

Most languages

Whisper Large V3

98 languages

OpenAI

Cheapest

Whisper Large V3

$0.0060/min

OpenAI

Comparing

2 models · same benchmark

1

Batch

Whisper Large V3

OpenAI

$0.0060/min
#24 · 69.3

OpenAI's Whisper large-v3 model

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2

Batch

Speechmatics Enhanced

Speechmatics

$0.0083/min
#6 · 47.3

Highest accuracy model — 55+ languages, best-in-class

Use This ModelDetails →

Overview

30-day benchmark average

Overall score

0–100

69.3

47.3

Accuracy rank

of 35

#24

#6

Word error rate

WER

17.7%

12.3%

Character error rate

CER

13.1%

8.0%

Match error rate

MER

16.6%

11.3%

Word info lost

WIL

21.6%

16.2%

Languages

98

48

Cost vs. accuracy

overall WER vs price

Speechmatics Enhanced

Whisper Large V3

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

62.7%
39.2%

conversational

11.2%
6.4%

finance

6.0%
6.8%

general

14.9%
7.2%

legal

2.4%
2.2%

medical

6.6%
5.7%

noisy

36.3%
40.8%

technical

6.5%
5.3%

Accuracy by accent

WER · English

african

24.6%
7.7%

australian

15.4%
7.7%

indian

19.1%
9.5%

uk

3.0%
3.0%

us

3.8%
1.9%

Speed & latency

p50 → p99

Processing speed

× realtime

0.3×

0.3×

Latency p50

3.5s

8.7s

Latency p90

4.3s

12.1s

Latency p99

4.3s

12.1s

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

$0.0060

$0.0083

Billing granularity

per 1s

per 1s

1 hour of audio

$0.36

$0.50

100 hours

$36.00

$49.68

1,000 hours

$360.00

$496.80

Capabilities

Feature support

Speaker diarization

No

Yes

Word-level timestamps

Yes

Yes

Code-switching

No

Yes

Auto-detect language

Yes

Yes

Live / streaming

No

No

Custom vocabulary

No

Yes

Coverage & deployment

Languages · formats · regions

Languages

98

48

Mode

Batch

Batch

Region

United States

Europe

Audio formats

mp3
wav
flac
m4a
ogg
webm
mp3
wav
flac
m4a
ogg

Max file size

25 MB

1 GB

Max duration

No limit

No limit

Compliance

SOC2
GDPR
SOC2
GDPR

Frequently asked questions

Is Whisper Large V3 or Speechmatics Enhanced more accurate?

Speechmatics Enhanced is more accurate, with a 12.3% word error rate versus 17.7% for Whisper Large V3, on our standardized benchmark.

Which is cheaper, Whisper Large V3 or Speechmatics Enhanced?

Whisper Large V3 is cheaper at $0.0060/min versus $0.0083/min for Speechmatics Enhanced.

Should you choose Whisper Large V3 or Speechmatics Enhanced?

Choose Whisper Large V3 for speed, lower cost, and language coverage; choose Speechmatics Enhanced for accuracy.