OpenTranscription
OpenTranscription
RankerModelsPlayground
OpenTranscription
OpenTranscription

One API to every speech-to-text model worth using. Compare them on your audio, route to the best one, pay per second.

Platform status

Product

RankerModelsTranscriptionsPlaygroundBlog

Developers

DocumentationReliabilityAPI VersioningStatus

Legal

Privacy PolicyTerms of ServiceSupport
© 2026 OpenTranscription
Back to Models

Nova-2 vs Gladia Solaria-3

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

Open both in playground

Verdict · who wins what

Most accurate

Gladia Solaria-3

9.8% WER

Gladia

Fastest

Gladia Solaria-3

0.2× realtime

Gladia

Most languages

Nova-2

33 languages

Deepgram

Cheapest

Nova-2

$0.0058/min

Deepgram

Comparing

2 models · same benchmark

1

Batch & Realtime

Nova-2

Deepgram

$0.0058/min
#18 · 76.2

Deepgram's Nova-2 speech recognition

Use This ModelDetails →

2

Batch

Gladia Solaria-3

Gladia

$0.0101/min
#3 · 52.2

Gladia Solaria-3 — EU-hosted batch speech-to-text tuned for the most accurate business audio across five core European languages (English, French, German, Spanish, Italian), with speaker diarization, custom vocabulary, and word-level timestamps.

Use This ModelDetails →

Overview

30-day benchmark average

Overall score

0–100

76.2

52.2

Accuracy rank

of 35

#18

#3

Word error rate

WER

16.5%

9.8%

Character error rate

CER

11.9%

5.8%

Match error rate

MER

15.4%

9.6%

Word info lost

WIL

21.0%

14.7%

Languages

33

5

Cost vs. accuracy

overall WER vs price

Nova-2

Gladia Solaria-3

field · 33 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

63.7%
24.8%

conversational

10.2%
7.0%

finance

11.3%
9.5%

general

13.1%
9.0%

legal

3.8%
2.9%

medical

7.3%
8.9%

noisy

31.3%

—

technical

4.9%

—

Accuracy by accent

WER · English

african

26.2%
24.6%

australian

15.4%
13.9%

indian

25.4%
25.4%

uk

11.9%
7.5%

us

9.4%
13.2%

Speed & latency

p50 → p99

Processing speed

× realtime

0.1×

0.2×

Latency p50

1.6s

7.6s

Latency p90

3.7s

7.7s

Latency p99

3.7s

7.7s

Realtime / streaming

Streaming benchmark averages

Realtime rank

of 17

#4

—

Realtime score

0–100

78.0

—

Time to first word

986ms

—

Final drain

192ms

—

Real-time factor

1.02×

—

Flicker

10.5%

—

Cadence

0.8/s

—

Reliability

Rolling 30 days

Uptime

83.33%

100.00%

Error rate

16.67%

0.00%

Pricing

billed per second

Rate

per minute

$0.0058

$0.0101

Billing granularity

per 1s

per 1s

1 hour of audio

$0.35

$0.61

100 hours

$34.92

$60.84

1,000 hours

$349.20

$608.40

Capabilities

Feature support

Speaker diarization

Yes

Yes

Word-level timestamps

Yes

Yes

Code-switching

Yes

No

Auto-detect language

Yes

Yes

Live / streaming

Yes

No

Custom vocabulary

Yes

Yes

Coverage & deployment

Languages · formats · regions

Languages

33

5

Mode

Batch & Realtime

Batch

Region

United States

EU (France)

Audio formats

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

Max file size

2 GB

1000 MB

Max duration

No limit

2 h 15 min

Compliance

HIPAA
SOC2
GDPR
GDPR

Frequently asked questions

Is Nova-2 or Gladia Solaria-3 more accurate?

Gladia Solaria-3 is more accurate, with a 9.8% word error rate versus 16.5% for Nova-2, on our standardized benchmark.

Which is cheaper, Nova-2 or Gladia Solaria-3?

Nova-2 is cheaper at $0.0058/min versus $0.0101/min for Gladia Solaria-3.

Should you choose Nova-2 or Gladia Solaria-3?

Choose Nova-2 for lower cost and language coverage; choose Gladia Solaria-3 for accuracy and speed.