Google announced during its I/O conference that AI Overviews has 1.5 billion monthly users, which is around 18 percent of the world's population.
AI Overviews appear at the top of Google search results for complex questions and have been driving a 10 percent increase in search engine usage for specific queries.
The service is available in over 200 countries and 40 languages, with the biggest markets being the US and India.
Despite its increasing popularity, the AI Overviews feature is not always accurate and has been known to make errors or provide incorrect information.