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GPT Transcribe vs Speechmatics Standard

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

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Verdict · who wins what

Most accurate

GPT Transcribe

9.6% WER

OpenAI

Fastest

Speechmatics Standard

0.1× realtime

Speechmatics

Most languages

GPT Transcribe

62 languages

OpenAI

Cheapest

GPT Transcribe

$0.0045/min

OpenAI

Comparing

2 models · same benchmark

1

Batch

GPT Transcribe

OpenAI

$0.0045/min
#4 · 79.2

OpenAI GPT Transcribe — OpenAI's current file-transcription model and the successor to GPT-4o Transcribe and Whisper. Detects the spoken language automatically and accepts custom vocabulary. Returns the transcript text without word-level timestamps.

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2

Batch

Speechmatics Standard

Speechmatics

$0.0050/min
#15 · 60.9

Cost-effective model — fast turnaround, 55+ languages

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Overview

30-day benchmark average

Overall score

0–100

79.2

60.9

Accuracy rank

of 36

#4

#15

Word error rate

WER

9.6%

14.7%

Character error rate

CER

7.1%

9.8%

Match error rate

MER

9.2%

13.8%

Word info lost

WIL

13.7%

19.3%

Languages

62

48

Cost vs. accuracy

overall WER vs price

GPT Transcribe

Speechmatics Standard

field · 34 models

lower-left is better

Accuracy by category

WER · lower is better

code_switching

20.4%
54.2%

conversational

11.4%
7.3%

finance

5.6%
7.9%

general

8.3%
7.4%

legal

3.1%
4.0%

medical

2.3%
7.8%

noisy

20.8%
50.3%

technical

4.2%
4.6%

Accuracy by accent

WER · English

african

18.5%
13.9%

australian

23.1%
13.9%

indian

20.6%
6.3%

uk

11.9%
0.0%

us

11.3%
3.8%

Speed & latency

p50 → p99

Processing speed

× realtime

—

0.1×

Latency p50

2.3s

7.1s

Latency p90

2.3s

7.3s

Latency p99

2.3s

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

100.00%

100.00%

Error rate

0.00%

0.00%

Pricing

billed per second

Rate

per minute

$0.0045

$0.0050

Billing granularity

per 1s

per 1s

1 hour of audio

$0.27

$0.30

100 hours

$27.00

$29.88

1,000 hours

$270.00

$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

Yes

Yes

Coverage & deployment

Languages · formats · regions

Languages

62

48

Mode

Batch

Batch

Region

United States

Europe

Audio formats

mp3
m4a
wav
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 Transcribe or Speechmatics Standard more accurate?

GPT Transcribe is more accurate, with a 9.6% word error rate versus 14.7% for Speechmatics Standard, on our standardized benchmark.

Which is cheaper, GPT Transcribe or Speechmatics Standard?

GPT Transcribe is cheaper at $0.0045/min versus $0.0050/min for Speechmatics Standard.

Should you choose GPT Transcribe or Speechmatics Standard?

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