Fact · Speech recognition
In the 2024 study, Google had the highest mean word error rate of the eleven services, with the largest spread between recordings.
Checked against its source on October 17, 2026
In the source's own words
“Google has the highest mean and standard deviation.”
Measuring the Accuracy of Automatic Speech Recognition Solutions (HTML version), Korbinian Kuhn et al., arXiv, 2024, Section 4.1, Accuracy.
Open the original- What it measures
- The study's box plots show the spread of error rates for each vendor on English batch transcription without vocabulary.
- What it does not show
- This describes one set of recordings. The paper's conclusion is that accuracy varies between vendors and between individual recordings.