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GPT-4o Transcribe vs Speechmatics Standard

2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Speechmatics Standard leads on raw accuracy; GPT-4o Transcribe is fastest; GPT-4o Transcribe covers the most languages; Speechmatics Standard is cheapest.

Open both in playground

Verdict · who wins what

Most accurate

Speechmatics Standard

14.7% WER

Speechmatics

Fastest

GPT-4o Transcribe

0.2× realtime

OpenAI

Most languages

GPT-4o Transcribe

98 languages

OpenAI

Cheapest

Speechmatics Standard

$0.0050/min

Speechmatics

Comparing

2 models · same benchmark

1

Batch

GPT-4o Transcribe

OpenAI

$0.0060/min
#15 · 74.0

GPT-4o optimized for transcription with improved WER

Use This ModelDetails →

2

Batch

Speechmatics Standard

Speechmatics

$0.0050/min
#14 · 60.9

Cost-effective model — fast turnaround, 55+ languages

Use This ModelDetails →

Overview

30-day benchmark average

Overall score

0–100

74.0

60.9

Accuracy rank

of 36

#15

#14

Word error rate

WER

14.8%

14.7%

Character error rate

CER

11.6%

9.8%

Match error rate

MER

14.3%

13.8%

Word info lost

WIL

18.9%

19.3%

Languages

98

48

Cost vs. accuracy

overall WER vs price

GPT-4o Transcribe

Speechmatics Standard

field · 34 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

44.8%
54.2%

conversational

25.8%
7.3%

finance

6.4%
7.9%

general

8.3%
7.4%

legal

3.6%
4.0%

medical

11.6%
7.8%

noisy

34.6%
50.3%

technical

18.2%
4.6%

Accuracy by accent

WER · English

african

26.2%
13.9%

australian

12.3%
13.9%

indian

27.0%
6.3%

uk

4.5%
0.0%

us

18.9%
3.8%

Speed & latency

p50 → p99

Processing speed

× realtime

0.2×

0.1×

Latency p50

2.5s

7.1s

Latency p90

2.8s

7.3s

Latency p99

2.8s

7.3s

Realtime / streaming

Streaming benchmark averages

Realtime rank

—

—

Realtime score

0–100

—

—

Time to first word

—

—

Final drain

—

—

Real-time factor

—

—

Flicker

—

—

Cadence

—

—

Reliability

Rolling 30 days

Uptime

0.00%

100.00%

Error rate

100.00%

0.00%

Pricing

billed per second

Rate

per minute

$0.0060

$0.0050

Billing granularity

per 1s

per 1s

1 hour of audio

$0.36

$0.30

100 hours

$36.00

$29.88

1,000 hours

$360.00

$298.80

Capabilities

Feature support

Speaker diarization

No

Yes

Word-level timestamps

No

Yes

Code-switching

No

Yes

Auto-detect language

Yes

Yes

Live / streaming

No

No

Custom vocabulary

No

Yes

Coverage & deployment

Languages · formats · regions

Languages

98

48

Mode

Batch

Batch

Region

United States

Europe

Audio formats

mp3
wav
flac
m4a
ogg
webm
mp3
wav
flac
m4a
ogg

Max file size

25 MB

1 GB

Max duration

No limit

No limit

Compliance

SOC2
GDPR
SOC2
GDPR

Frequently asked questions

Is GPT-4o Transcribe or Speechmatics Standard more accurate?

Speechmatics Standard is more accurate, with a 14.7% word error rate versus 14.8% for GPT-4o Transcribe, on our standardized benchmark.

Which is cheaper, GPT-4o Transcribe or Speechmatics Standard?

Speechmatics Standard is cheaper at $0.0050/min versus $0.0060/min for GPT-4o Transcribe.

Should you choose GPT-4o Transcribe or Speechmatics Standard?

Choose GPT-4o Transcribe for speed and language coverage; choose Speechmatics Standard for accuracy and lower cost.