2 models compared on the same benchmark — accuracy, latency, price, language coverage and capabilities. Whisper Large V3 leads on raw accuracy; Nova-3 is fastest; Nova-3 covers the most languages; Whisper Large V3 is cheapest.
Verdict · who wins what
Most accurate
Whisper Large V3
14.4% WER
Groq
Fastest
Nova-3
0.1× realtime
Deepgram
Most languages
Nova-3
47 languages
Deepgram
Cheapest
Whisper Large V3
$0.0019/min
Groq
Comparing
2 models · same benchmark
1
Nova-3
Deepgram
Deepgram's flagship model — 53% lower WER vs competitors, code-switching support
2
Whisper Large V3
Groq
OpenAI Whisper large-v3 served on Groq's LPU hardware — top Whisper accuracy at Groq speed and cost, with word-level timestamps and automatic language detection.
general
legal
medical
noisy
technical
uk
us
Latency p99
1.8s
3.6s
Final drain
181ms
—
Real-time factor
1.01×
—
Flicker
9.6%
—
Cadence
0.8/s
—
$11.16
1,000 hours
$460.80
$111.60
No
Auto-detect language
Yes
Yes
Live / streaming
Yes
No
Custom vocabulary
Yes
No
Max file size
2 GB
100 MB
Max duration
No limit
No limit
Compliance
—
Is Nova-3 or Whisper Large V3 more accurate?
Whisper Large V3 is more accurate, with a 14.4% word error rate versus 21.0% for Nova-3, on our standardized benchmark.
Which is cheaper, Nova-3 or Whisper Large V3?
Whisper Large V3 is cheaper at $0.0019/min versus $0.0077/min for Nova-3.
Should you choose Nova-3 or Whisper Large V3?
Choose Nova-3 for speed and language coverage; choose Whisper Large V3 for accuracy and lower cost.
