
AI guidance fuels overconfidence while harming accuracy, new study finds
Researchers from three French and Italian universities found that access to AI advice drastically reduced people’s willingness to admit ignorance (44% to 3%), cut accuracy (27% to 9%), and boosted confidence (30% to 76%). The study used a known-failure model (Step 3.5 Flash) with questions about visual details in films, showing that simply having AI available can suppress the habit of recognizing what you don’t know, leading some participants to be wrong despite being more confident—and incentives did little to counteract it.













