Spanish

Share of words the transcript got wrong.

AssemblyAIUniversal-3.5 Pro3.9%

ElevenLabsScribe v2 Realtime4.4%

Sonioxstt-rt-v55.2%

AlibabaQwen3-ASR Realtime6.6%

OpenAIGPT-4o-mini Transcribe7.2%

DeepgramNova-37.6%

GradiumASR8.5%

OpenAIGPT-4o Transcribe8.7%

GoogleChirp 39.3%

Smallest AIPulse10.3%

CartesiaInk-Whisper10.9%

DeepgramNova-212.2%

0.0%5.0%10.0%15.0%20.0%

Time from the caller stopping to the finalized transcript, not the first partial — the agent cannot reply until it lands.

DeepgramNova-3272ms · 533ms

DeepgramNova-2288ms · 416ms

Sonioxstt-rt-v5478ms · 1.13s

AssemblyAIUniversal-3.5 Pro650ms · 1.67s

Smallest AIPulse876ms · 983ms

OpenAIGPT-4o-mini Transcribe898ms · 996ms

OpenAIGPT-4o Transcribe910ms · 1.15s

AlibabaQwen3-ASR Realtime936ms · 1.09s

GradiumASR1.06s · 1.25s

GoogleChirp 31.12s · 1.50s

ElevenLabsScribe v2 Realtime2.00s · 2.25s

0ms300ms600ms900ms1.20s

p50 p90

How long before the first word of the transcript arrives.

AssemblyAIUniversal-3.5 Pro1.77s · 2.28s

DeepgramNova-22.12s · 3.17s

DeepgramNova-32.12s · 3.03s

ElevenLabsScribe v2 Realtime2.21s · 3.16s

Sonioxstt-rt-v52.22s · 2.91s

Smallest AIPulse2.39s · 3.60s

GradiumASR3.00s · 3.51s

GoogleChirp 36.23s · 7.41s

OpenAIGPT-4o Transcribe6.96s · 10.7s

OpenAIGPT-4o-mini Transcribe7.33s · 10.7s

AlibabaQwen3-ASR Realtime7.42s · 8.46s

0ms2.00s4.00s6.00s8.00s

p50 p90

$ per 1,000 minutes of audio · vendor list price, the same in every language

$0.00$5.00$10.00$15.00$20.00

$2.00

$3.00

$4.80

~$5.00

$5.40

$6.00

$6.50

$7.50

$10.40

$16.00

Sonioxstt-rt-v5OpenAIGPT-4o-mini TranscribeDeepgramNova-3Smallest AIPulseAlibabaQwen3-ASROpenAIGPT-4o TranscribeElevenLabsScribe v2 RealtimeAssemblyAIUniversal-3.5 ProGradiumASRGoogleChirp 3