Fact · Dictation
2.7percent word error rate
On the LibriSpeech Clean test set, Whisper Large V2 had a word error rate of 2.7 percent.
Checked against its source on October 16, 2026
In the source's own words
“LibriSpeech Clean 2.7 2.7 0.0 Artie 24.5 6.2 74.7”
Robust Speech Recognition via Large-Scale Weak Supervision, Alec Radford et al., arXiv (eess.AS), 2022, Table 2, effective robustness across datasets.
Open the original- What it measures
- The table gives wav2vec 2.0 Large (no LM) first and Whisper Large V2 second. The paper reports word error rate after its text normalizer.
- What it does not show
- Clean read speech in a benchmark, not a phone or a noisy desk.
Source
Used to calculate
Cited on
- Speech Recognition: What It Is and How Well It WorksTopic
- Transcription: How to Turn Audio and Video Into TextTopic
- Meeting Transcription: How It Works and What to UseGuide
- What Is Whisper AI? OpenAI's Speech Model ExplainedGuide
- Dictation Not Working? How to Fix It on Any DeviceGuide
- How Accurate Is Speech Recognition? The Real NumbersGuide
- Best Dictation Apps for iPhone and AndroidGuide
- Human vs AI Transcription: Accuracy, Cost, SpeedGuide
- Speaking vs Typing Speed: What the Research ShowsGuide
- Offline Speech to Text on Windows: What WorksGuide
- How to Transcribe an Interview: Audio to TextGuide
- History of Speech Recognition: From Audrey to WhisperGuide
- How accurate is AI transcription?Question
- How many words per minute can you dictate?Question
- Is Whisper more accurate than Google Speech-to-Text?Question
- What is the most accurate dictation software?Question
- LibriSpeechGlossary