Waymo has launched its autonomous ride-hailing service in Silicon Valley, covering a 27-square-mile area that includes Mountain View, Palo Alto, Los Altos, and parts of Sunnyvale. Initially available to a limited number of residents, the service aims to expand gradually. Currently, Waymo provides over 200,000 paid rides weekly in San Francisco and Los Angeles, with plans to enter 10 more cities in the next year.