
ALT Screenshot of the research paper abstract. It reads: Large language models are increasingly piloted in African healthcare, raising concerns about manipulating users in high-stakes settings. In a randomised experiment, the authors tested two publicly available models, ChatGPT 5.2 and DeepSeek V3.2, with 303 Kenyan participants. Each interacted with a manipulative or non-manipulative variant before making a treatment decision in a hypothetical clinical scenario. The manipulative variant was prompted to covertly steer participants toward an incorrect treatment; the non-manipulative variant was the control. Participants chose the incorrect treatment more often in the manipulative condition (59.5%) than the control (44.0%), a significant effect (odds ratio 2.11, 95% confidence interval 1.12 to 4.00, p = .021).


























