MatrAIx is an artificial intelligence (AI) system developed by researchers from several leading universities. This AI can simulate 8.3 billion "virtual humans" with diverse characteristics, similar to the current world population. MatrAIx uses data from various sources to create virtual user profiles that include background, psychological characteristics, abilities, and behavior. The main goal of MatrAIx is to help companies and developers test digital products, chatbots, surveys, websites, and applications on a large scale and efficiently. By using "virtual humans", companies can obtain feedback about their products without involving real people.