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Qwen3 ASR Flash vs Nova-2

2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Qwen3 ASR Flash leads on raw accuracy; Qwen3 ASR Flash is fastest; Nova-2 covers the most languages; Qwen3 ASR Flash is cheapest.

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Verdict · who wins what

Most accurate

Qwen3 ASR Flash

12.3% WER

Alibaba (Qwen)

Fastest

Qwen3 ASR Flash

0.1× realtime

Alibaba (Qwen)

Most languages

Nova-2

33 languages

Deepgram

Cheapest

Qwen3 ASR Flash

$0.0021/min

Alibaba (Qwen)

Comparing

2 models · same benchmark

1

Batch

Qwen3 ASR Flash

Alibaba (Qwen)

$0.0021/min
#5 · 69.1

Alibaba Qwen3-ASR Flash — multilingual batch transcription (25+ languages) with word-level timestamps and automatic language detection, served from Model Studio (Singapore). Handles files up to 12 hours.

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2

Batch & Realtime

Nova-2

Deepgram

$0.0058/min
#18 · 76.2

Deepgram's Nova-2 speech recognition

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Overview

30-day benchmark average

Overall score

0–100

69.1

76.2

Accuracy rank

of 35

#5

#18

Word error rate

WER

12.3%

16.5%

Character error rate

CER

7.4%

11.9%

Match error rate

MER

11.2%

15.4%

Word info lost

WIL

14.3%

21.0%

Languages

25

33

Cost vs. accuracy

overall WER vs price

Nova-2

Qwen3 ASR Flash

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

18.4%
63.7%

conversational

9.7%
10.2%

finance

6.0%

Accuracy by accent

WER · English

african

24.6%
26.2%

australian

13.9%
15.4%

indian

20.6%

Speed & latency

p50 → p99

Processing speed

× realtime

0.1×

0.1×

Latency p50

7.0s

1.6s

Latency p90

7.0s

3.7s

Realtime / streaming

Streaming benchmark averages

Realtime rank

of 17

—

#4

Realtime score

0–100

—

78.0

Time to first word

—

986ms

Reliability

Rolling 30 days

Uptime

100.00%

83.33%

Error rate

0.00%

16.67%

Pricing

billed per second

Rate

per minute

$0.0021

$0.0058

Billing granularity

per 1s

per 1s

1 hour of audio

$0.13

$0.35

100 hours

Capabilities

Feature support

Speaker diarization

No

Yes

Word-level timestamps

Yes

Yes

Code-switching

No

Coverage & deployment

Languages · formats · regions

Languages

25

33

Mode

Batch

Batch & Realtime

Region

Singapore

United States

Audio formats

11.3%

general

11.3%
13.1%

legal

3.6%
3.8%

medical

7.0%
7.3%

noisy

29.2%
31.3%

technical

4.0%
4.9%
25.4%

uk

1.5%
11.9%

us

1.9%
9.4%

Latency p99

7.0s

3.7s

Final drain

—

192ms

Real-time factor

—

1.02×

Flicker

—

10.5%

Cadence

—

0.8/s

$12.60

$34.92

1,000 hours

$126.00

$349.20

Yes

Auto-detect language

Yes

Yes

Live / streaming

No

Yes

Custom vocabulary

No

Yes

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

Max file size

2 GB

2 GB

Max duration

12 h

No limit

Compliance

—

HIPAA
SOC2
GDPR

Frequently asked questions

Is Qwen3 ASR Flash or Nova-2 more accurate?

Qwen3 ASR Flash is more accurate, with a 12.3% word error rate versus 16.5% for Nova-2, on our standardized benchmark.

Which is cheaper, Qwen3 ASR Flash or Nova-2?

Qwen3 ASR Flash is cheaper at $0.0021/min versus $0.0058/min for Nova-2.

Should you choose Qwen3 ASR Flash or Nova-2?

Choose Qwen3 ASR Flash for accuracy, speed, and lower cost; choose Nova-2 for language coverage.