STT

#	Model	Overall	WER · batch / stream	Finalize · faster ▸	Time to first token · faster ▸	Cost / min
1	Universal-3.5 ProAssemblyAI	96	2.0% / 2.0%	66ms · 81ms	1.32s · 2.54s	$0.0075
2	Realtime STT-1Inworld⚠	93	3.3% / 3.6%	139ms · 158ms	1.21s · 1.81s	$0.0025
3	Scribe v2ElevenLabs	92	3.1% / 3.4%	233ms · 323ms	2.18s · 2.27s	$0.0065
4	PulseSmallest AI⚠	90	5.1% / 8.0%	178ms · 196ms	1.39s · 2.40s	~$0.005
5	Grok STTxAI	86	4.8% / 10.9%	305ms · 356ms	1.34s · 1.39s	$0.0033
6	Qwen3-ASRAlibaba⚠	85	2.8% / 4.0%	424ms · 606ms	6.60s · 7.31s	$0.0054
7	stt-rt-v5Soniox	85	7.5% / 7.3%	78ms · 96ms	1.04s · 1.68s	$0.002
8	GPT-4o-mini TranscribeOpenAI	84	2.7% / 6.4%	460ms · 585ms	4.98s · 11.21s	$0.003
9	GPT-4o TranscribeOpenAI	81	2.3% / 5.8%	572ms · 800ms	5.06s · 10.97s	$0.006
10	Nova-3Deepgram	80	9.8% / 12.9%	106ms · 138ms	1.12s · 1.58s	$0.0048
11	Ink-2Cartesia⚠	78	11.0% / 9.9%	102ms · 151ms	1.16s · 2.06s	$0.0090
12	Gradium ASRGradium	78	8.4% / 11.7%	334ms · 406ms	1.83s · 2.72s	$0.0104
13	Chirp 3Google	77	3.9% / 7.4%	581ms · 882ms	5.59s · 6.21s	$0.0160
14	GPT Transcribe / GPT Live TranscribeOpenAI⚠	58	2.5% / 4.5%	1.12s · 1.95s	1.77s · 2.08s	$0.017
15	FluxDeepgram⚠	—	— / 6.6%	406ms · 1.19s	1.11s · 1.59s	$0.0065

WER · batch / streaminglower is better · faint = live stream

Universal-3.5 Pro2.0% / 2.0%

GPT-4o Transcribe2.3% / 5.8%

GPT Transcribe / GPT Live Transcribe2.5% / 4.5%

GPT-4o-mini Transcribe2.7% / 6.4%

Qwen3-ASR2.8% / 4.0%

Scribe v23.1% / 3.4%

Realtime STT-13.3% / 3.6%

Chirp 33.9% / 7.4%

Grok STT4.8% / 10.9%

Pulse5.1% / 8.0%

stt-rt-v57.5% / 7.3%

Gradium ASR8.4% / 11.7%

Nova-39.8% / 12.9%

Ink-211.0% / 9.9%

Finalize latencyfaster is better

Universal-3.5 Pro66ms

stt-rt-v578ms

Ink-2102ms

Nova-3106ms

Realtime STT-1139ms

Pulse178ms

Scribe v2233ms

Grok STT305ms

Gradium ASR334ms

Flux406ms

Qwen3-ASR424ms

GPT-4o-mini Transcribe460ms

GPT-4o Transcribe572ms

Chirp 3581ms

GPT Transcribe / GPT Live Transcribe1124ms

Time to first tokenfaster is better

stt-rt-v51.04s

Flux1.11s

Nova-31.12s

Ink-21.16s

Realtime STT-11.21s

Universal-3.5 Pro1.32s

Grok STT1.34s

Pulse1.39s

GPT Transcribe / GPT Live Transcribe1.77s

Gradium ASR1.83s

Scribe v22.18s

GPT-4o-mini Transcribe4.98s

GPT-4o Transcribe5.06s

Chirp 35.60s

Qwen3-ASR6.60s

Cost / mincheaper is better

stt-rt-v5$0.002

Realtime STT-1$0.0025

GPT-4o-mini Transcribe$0.003

Grok STT$0.0033

Nova-3$0.0048

Pulse~$0.005

Qwen3-ASR$0.0054

GPT-4o Transcribe$0.006

Scribe v2$0.0065

Flux$0.0065

Universal-3.5 Pro$0.0075

Ink-2$0.0090

Gradium ASR$0.0104

Chirp 3$0.0160

GPT Transcribe / GPT Live Transcribe$0.017