Fact · Voice and AI
56words per minute
In the 2026 Nature Medicine study, the participant communicated with the speech BCI at home at an average rate of 56 words per minute over almost two years of use.
Checked against its source on October 17, 2026
In the source's own words
“at an average rate of 56 words per minute”
Long-term independent use of an intracortical brain-computer interface for speech and cursor control, Nicholas S. Card et al., Nature Medicine, 2026, Abstract.
Open the original (DOI 10.1038/s41591-026-04414-6)- What it measures
- The rate covers real communication with family, friends and work over almost two years, with no researchers present, and the participant's output totals almost two million words.
- What it does not show
- One participant with ALS. The average covers varied real use and system updates made during the study, so it is not a controlled test of speed.