In the sphere of psychology research, longitudinal studies often necessitate the comparison of various instruments, like General Health Questionnaire (GHQ 12) and Adult Eating Behaviour Questionnaire (AEBQ). The process, known as harmonisation, can be laborious and complex. This is where Harmony, an AI-powered tool, comes to the rescue, making the task of harmonising direct and straightforward. In the context of GHQ 12 vs AEBQ, Harmony can be an exceptional tool for researchers to determine the percentage match between each item in these two instruments. Harmony can significantly simplify the comparison process between GHQ 12 vs AEBQ by using its large language models to scour through the instruments. With Harmony, researchers can select tools from its extensive database or easily upload their own tools in PDF form directly into Harmony’s user-friendly web interface. This flexible and easy functionality makes conducting the comparison of GHQ 12 vs AEBQ a seamless, more manageable process. In conclusion, Harmony, with its superior natural language processing and generative AI capabilities, offers a powerful solution for psychologists and social scientists dealing with harmonisation tasks such as GHQ 12 vs AEBQ. By using Harmony, these professionals can not only enhance their comparative analyses but also significantly reduce the time spent on menial, time-consuming aspects of their research.