AI-driven research, known as synthetic user testing, is being used to replace traditional UX research in companies.AI personas are created to mimic human behavior within products, offering fast, cheap, and easy testing options.However, AI research often lacks the depth and real insights provided by human-conducted UX research.AI-generated data may not accurately represent user behavior and can lead to misleading or non-applicable conclusions.AI research tends to overlook the nuanced and varied nature of human behavior, relying on generalized patterns.Mechanical decisions made by AI can be indiscriminate, erode quality, and reinforce biases and stereotypes.Using AI as a starting point in research is beneficial but should be complemented by human research for reliable insights.The article highlights the importance of engaging with real customers for meaningful UX insights, rather than solely relying on AI.Triangulating insights from AI, analytics, and human research can provide a more comprehensive understanding of user behavior.The value of human interaction and observation in UX work is emphasized over automated AI tools in ensuring quality design.