Fact · Voice and AI
30.6words per minute
In the same 2026 copy task, the participant's vocalized speech was decoded at an average of 30.6 words per minute, with accuracy above 99 percent.
Checked against its source on October 17, 2026
In the source's own words
“During vocalized speech, accuracy exceeded 99% at 30.6 WPM average”
Long-term independent use of an intracortical brain-computer interface for speech and cursor control, Nicholas S. Card et al., Nature Medicine, 2026, Results, copy task comparing silent and vocalized speech.
Open the original (DOI 10.1038/s41591-026-04414-6)- What it measures
- This is the comparison condition for the silent speech figure. Both were measured in the same copy task with sentences shown on a screen.
- What it does not show
- One participant in a copy task. Accuracy is high here because the condition was the easier one for him, not because vocalized speech is faster in general.