AI can predict how you’ll respond to a survey. But that’s not the same as understanding you
July 9, 2026 (Conversation) What makes people change their minds, or their behaviour? Social scientists spend a lot of time thinking about this question, and experiments are one of the most powerful ways to answer it. Experiments – testing ideas on real people – take considerable amounts of time and money. Enter large language models (LLMs): artificial intelligence (AI) systems trained to mimic certain kinds of text-based human behaviour based on vast amounts of human-produced text. A new study led by Harvard psychology researcher Ashwini Ashokkumar, published today in Nature, suggests LLMs such as GPT-4 can predict the outcomes of