A list of the world's smartest cities has been released, with some outlets reporting the top 10 cities globally and others focusing on specific regions, such as the US. There is some discrepancy over which cities make the list, with some sources indicating that US cities are not included among the top 10, while others suggest that certain US cities are among the smartest. The rankings appear to be based on various factors, including technology and livability, but the exact criteria and outcomes are not consistent across reports.