2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. GPT-4o Transcribe leads on raw accuracy; Azure Speech is fastest; GPT-4o Transcribe covers the most languages.
Verdict · who wins what
Most accurate
GPT-4o Transcribe
14.8% WER
OpenAI
Fastest
Azure Speech
0.3× realtime
Microsoft Azure
Most languages
GPT-4o Transcribe
98 languages
OpenAI
Cheapest
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Comparing
2 models · same benchmark
1
Azure Speech
Microsoft Azure
Azure default STT model — 140+ languages, diarization, word timestamps
2
GPT-4o Transcribe
OpenAI
GPT-4o optimized for transcription with improved WER
GPT-4o Transcribe
Azure Speech
field · 34 models
lower-left is better
Is Azure Speech or GPT-4o Transcribe more accurate?
GPT-4o Transcribe is more accurate, with a 14.8% word error rate versus 15.3% for Azure Speech, on our standardized benchmark.
Which is cheaper, Azure Speech or GPT-4o Transcribe?
Azure Speech and GPT-4o Transcribe cost the same at $0.0060/min.
Should you choose Azure Speech or GPT-4o Transcribe?
Choose Azure Speech for speed; choose GPT-4o Transcribe for accuracy and language coverage.
