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Nova-3 vs Whisper Large V3

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

Open both in playground

Verdict · who wins what

Most accurate

Whisper Large V3

17.7% WER

OpenAI

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 & Realtime

Nova-3

Deepgram

$0.0077/min
#29 · 71.1

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

Use This ModelDetails →

2

Batch

Whisper Large V3

OpenAI

$0.0060/min
#24 · 69.3

OpenAI's Whisper large-v3 model

Use This ModelDetails →

Overview

30-day benchmark average

Overall score

0–100

71.1

69.3

Accuracy rank

of 35

#29

#24

Word error rate

WER

21.0%

17.7%

Character error rate

CER

11.5%

13.1%

Match error rate

MER

20.0%

16.6%

Word info lost

WIL

25.8%

21.6%

Languages

47

98

Cost vs. accuracy

overall WER vs price

Nova-3

Whisper Large V3

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

63.0%
62.7%

conversational

12.2%
11.2%

finance

9.5%
6.0%

general

23.4%
14.9%

legal

3.8%
2.4%

medical

9.5%
6.6%

noisy

21.8%
36.3%

technical

2.8%
6.5%

Accuracy by accent

WER · English

african

26.2%
24.6%

australian

15.4%
15.4%

indian

27.0%
19.1%

uk

6.0%
3.0%

us

11.3%
3.8%

Speed & latency

p50 → p99

Processing speed

× realtime

0.1×

0.3×

Latency p50

1.3s

3.5s

Latency p90

1.8s

4.3s

Latency p99

1.8s

4.3s

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

$0.0060

Billing granularity

per 1s

per 1s

1 hour of audio

$0.46

$0.36

100 hours

$46.08

$36.00

1,000 hours

$460.80

$360.00

Capabilities

Feature support

Speaker diarization

Yes

No

Word-level timestamps

Yes

Yes

Code-switching

Yes

No

Auto-detect language

Yes

Yes

Live / streaming

Yes

No

Custom vocabulary

Yes

No

Coverage & deployment

Languages · formats · regions

Languages

47

98

Mode

Batch & Realtime

Batch

Region

United States

United States

Audio formats

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

Max file size

2 GB

25 MB

Max duration

No limit

No limit

Compliance

HIPAA
SOC2
GDPR
SOC2
GDPR

Frequently asked questions

Is Nova-3 or Whisper Large V3 more accurate?

Whisper Large V3 is more accurate, with a 17.7% word error rate versus 21.0% for Nova-3, on our standardized benchmark.

Which is cheaper, Nova-3 or Whisper Large V3?

Whisper Large V3 is cheaper at $0.0060/min versus $0.0077/min for Nova-3.

Should you choose Nova-3 or Whisper Large V3?

Whisper Large V3 is the stronger choice overall, leading on accuracy, speed, lower cost, and language coverage.