10

Figure 7. Whisper’s performance is close to that of profes-
sional human transcribers. This plot shows the WER distri-
butions of 25 recordings from the Kincaid46 dataset transcribed
by Whisper, the same 4 commercial ASR systems from Figure 6
(A-D), one computer-assisted human transcription service (E) and
4 human transcription services (F-I). The box plot is superimposed
with dots indicating the WERs on individual recordings, and the
aggregate WER over the 25 recordings are annotated on each box.
RobustSpeechRecognitionviaLarge-ScaleWeakSupervision