Fact · Dictation
680,000hours of training audio
OpenAI's Whisper speech recognition models were trained on 680,000 hours of multilingual and multitask audio with transcripts.
Checked against its source on October 16, 2026
In the source's own words
“When scaled to 680,000 hours of multilingual and multitask supervision, the resulting models generalize well to standard benchmarks”
Robust Speech Recognition via Large-Scale Weak Supervision, Alec Radford et al., arXiv (eess.AS), 2022, Abstract.
Open the original- What it measures
- Whisper, released in 2022 with open weights, is the basis of many current dictation apps.
- What it does not show
- Training-data size, not accuracy; accuracy varies by language and recording.
Source
Used to calculate
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