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; GPT-4o Mini Transcribe covers the most languages; GPT-4o Mini Transcribe is cheapest.
Verdict · who wins what
Most accurate
Gladia Solaria-3
9.8% WER
Gladia
Fastest
Gladia Solaria-3
0.2× realtime
Gladia
Most languages
GPT-4o Mini Transcribe
98 languages
OpenAI
Cheapest
GPT-4o Mini Transcribe
$0.0030/min
OpenAI
Comparing
2 models · same benchmark
1
Gladia Solaria-3
Gladia
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.
2
GPT-4o Mini Transcribe
OpenAI
GPT-4o Mini optimized for fast transcription
GPT-4o Mini Transcribe
Gladia Solaria-3
field · 33 models
lower-left is better
general
legal
medical
noisy
—
technical
—
uk
us
Latency p99
7.7s
2.4s
$18.00
1,000 hours
$608.40
$180.00
No
Auto-detect language
Yes
Yes
Live / streaming
No
No
Custom vocabulary
Yes
No
Max file size
1000 MB
25 MB
Max duration
2 h 15 min
No limit
Compliance
Is Gladia Solaria-3 or GPT-4o Mini Transcribe more accurate?
Gladia Solaria-3 is more accurate, with a 9.8% word error rate versus 13.6% for GPT-4o Mini Transcribe, on our standardized benchmark.
Which is cheaper, Gladia Solaria-3 or GPT-4o Mini Transcribe?
GPT-4o Mini Transcribe is cheaper at $0.0030/min versus $0.0101/min for Gladia Solaria-3.
Should you choose Gladia Solaria-3 or GPT-4o Mini Transcribe?
Choose Gladia Solaria-3 for accuracy and speed; choose GPT-4o Mini Transcribe for lower cost and language coverage.
