Researchers randomly assigned participants to read a technical text about large language models attributed to either a male or female human author or a male or female AI author. Participants rated the author’s competence and the credibility of the text, and also reported their attitudes toward AI.

Human authors received higher competence ratings than AI authors, while author gender did not affect competence ratings. Among people skeptical of AI, texts attributed to male authors were rated as more credible than texts attributed to female authors; this difference became smaller among people with more positive attitudes toward AI.