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Nova-3 vs Speechmatics Standard

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

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Verdict · who wins what

Most accurate

Speechmatics Standard

14.7% WER

Speechmatics

Fastest

Speechmatics Standard

0.1× realtime

Speechmatics

Most languages

Speechmatics Standard

48 languages

Speechmatics

Cheapest

Speechmatics Standard

$0.0050/min

Speechmatics

Comparing

2 models · same benchmark

1

Batch & Realtime

Nova-3

Deepgram

$0.0077/min
#29 · 71.1

Deepgram's flagship model — 53% lower WER vs competitors, code-switching support

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2

Batch

Speechmatics Standard

Speechmatics

$0.0050/min
#13 · 60.9

Cost-effective model — fast turnaround, 55+ languages

Use This ModelDetails →

Overview

30-day benchmark average

Overall score

0–100

71.1

60.9

Accuracy rank

of 35

#29

#13

Word error rate

WER

21.0%

14.7%

Character error rate

CER

11.5%

9.8%

Match error rate

MER

20.0%

13.8%

Word info lost

WIL

25.8%

19.3%

Languages

47

48

Cost vs. accuracy

overall WER vs price

Nova-3

Speechmatics Standard

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

63.0%
54.2%

conversational

12.2%
7.3%

finance

9.5%
7.9%

general

23.4%
7.4%

legal

3.8%
4.0%

medical

9.5%
7.8%

noisy

21.8%
50.3%

technical

2.8%
4.6%

Accuracy by accent

WER · English

african

26.2%
13.9%

australian

15.4%
13.9%

indian

27.0%
6.3%

uk

6.0%
0.0%

us

11.3%
3.8%

Speed & latency

p50 → p99

Processing speed

× realtime

0.1×

0.1×

Latency p50

1.3s

7.1s

Latency p90

1.8s

7.3s

Latency p99

1.8s

7.3s

Realtime / streaming

Streaming benchmark averages

Realtime rank

of 17

#3

—

Realtime score

0–100

78.2

—

Time to first word

973ms

—

Final drain

181ms

—

Real-time factor

1.01×

—

Flicker

9.6%

—

Cadence

0.8/s

—

Reliability

Rolling 30 days

Uptime

50.00%

100.00%

Error rate

50.00%

0.00%

Pricing

billed per second

Rate

per minute

$0.0077

$0.0050

Billing granularity

per 1s

per 1s

1 hour of audio

$0.46

$0.30

100 hours

$46.08

$29.88

1,000 hours

$460.80

$298.80

Capabilities

Feature support

Speaker diarization

Yes

Yes

Word-level timestamps

Yes

Yes

Code-switching

Yes

Yes

Auto-detect language

Yes

Yes

Live / streaming

Yes

No

Custom vocabulary

Yes

Yes

Coverage & deployment

Languages · formats · regions

Languages

47

48

Mode

Batch & Realtime

Batch

Region

United States

Europe

Audio formats

mp3
wav
flac
m4a
ogg
webm
mp3
wav
flac
m4a
ogg

Max file size

2 GB

1 GB

Max duration

No limit

No limit

Compliance

HIPAA
SOC2
GDPR
SOC2
GDPR

Frequently asked questions

Is Nova-3 or Speechmatics Standard more accurate?

Speechmatics Standard is more accurate, with a 14.7% word error rate versus 21.0% for Nova-3, on our standardized benchmark.

Which is cheaper, Nova-3 or Speechmatics Standard?

Speechmatics Standard is cheaper at $0.0050/min versus $0.0077/min for Nova-3.

Should you choose Nova-3 or Speechmatics Standard?

Speechmatics Standard is the stronger choice overall, leading on accuracy, speed, lower cost, and language coverage.