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Nova-3 vs Chirp 3

2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Chirp 3 leads on raw accuracy; Chirp 3 is fastest; Chirp 3 covers the most languages; Nova-3 is cheapest.

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Verdict · who wins what

Most accurate

Chirp 3

10.0% WER

Google Cloud

Fastest

Chirp 3

0.3× realtime

Google Cloud

Most languages

Chirp 3

68 languages

Google Cloud

Cheapest

Nova-3

$0.0077/min

Deepgram

Comparing

2 models · same benchmark

1

Batch & Realtime

Nova-3

Deepgram

$0.0077/min
#28 · 71.1

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

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2

Batch

Chirp 3

Google Cloud

$0.0107/min
#4 · 45.0

Google's latest generative ASR foundation model — 85+ languages

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Overview

30-day benchmark average

Overall score

0–100

71.1

45.0

Accuracy rank

of 34

#28

#4

Word error rate

WER

21.0%

10.0%

Character error rate

CER

11.5%

5.8%

Match error rate

MER

20.0%

9.7%

Word info lost

WIL

25.8%

14.1%

Languages

47

68

Cost vs. accuracy

overall WER vs price

Chirp 3

Nova-3

field · 32 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

63.0%
17.1%

conversational

12.2%
4.7%

finance

9.5%
7.1%

general

23.4%
8.2%

legal

3.8%
2.9%

medical

9.5%
1.9%

noisy

21.8%
29.2%

technical

2.8%
3.7%

Accuracy by accent

WER · English

african

26.2%
20.0%

australian

15.4%
16.9%

indian

27.0%
27.0%

uk

6.0%
3.0%

us

11.3%
5.7%

Speed & latency

p50 → p99

Processing speed

× realtime

0.1×

0.3×

Latency p50

1.3s

11.0s

Latency p90

1.8s

11.2s

Latency p99

1.8s

11.2s

Realtime / streaming

Streaming benchmark averages

Realtime rank

of 15

#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

100.00%

100.00%

Error rate

0.00%

0.00%

Pricing

billed per second

Rate

per minute

$0.0077

$0.0107

Billing granularity

per 1s

per 15s

1 hour of audio

$0.46

$0.64

100 hours

$46.08

$64.08

1,000 hours

$460.80

$640.80

Capabilities

Feature support

Speaker diarization

Yes

Yes

Word-level timestamps

Yes

No

Code-switching

Yes

Yes

Auto-detect language

Yes

Yes

Live / streaming

Yes

No

Custom vocabulary

Yes

Yes

Coverage & deployment

Languages · formats · regions

Languages

47

68

Mode

Batch & Realtime

Batch

Region

United States

United States

Audio formats

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

Max file size

2 GB

No limit

Max duration

No limit

8 h

Compliance

HIPAA
SOC2
GDPR
HIPAA
SOC2
GDPR

Frequently asked questions

Is Nova-3 or Chirp 3 more accurate?

Chirp 3 is more accurate, with a 10.0% word error rate versus 21.0% for Nova-3, on our standardized benchmark.

Which is cheaper, Nova-3 or Chirp 3?

Nova-3 is cheaper at $0.0077/min versus $0.0107/min for Chirp 3.

Should you choose Nova-3 or Chirp 3?

Choose Nova-3 for lower cost; choose Chirp 3 for accuracy, speed, and language coverage.