Fact · Voice and AI
92percent of sentences
In the 2026 Nature Medicine study, the participant labeled 92 percent of his sentences as decoded at least mostly correctly.
Checked against its source on October 17, 2026
In the source's own words
“He labeled 92% of sentences as being decoded at least mostly correctly”
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 participant rated the sentences himself, during home use. The paper separately reports word accuracy above 99 percent in structured tests with a 125,000-word vocabulary.
- What it does not show
- Self-rated correctness, one participant, and sentences from real home use. It is a different measure from word error rate in a lab test.