According to Robotaxi Tracker, the advertised San Antonio zone covers about 274 square miles and roughly one million residents, more than four times Waymo's service area in the city (about 59 square miles). The airport is inside the map but is not served. Tesla did not say how many cars will operate in the city, and as of Monday morning none of its Robotaxis had been logged there. On the same day, Tesla expanded its Austin zone to 443 square miles.
According to an independent tracker who tested thousands of addresses in the app, in six cities the area where pickups and drop-offs actually work is between 59% and 78% of the map Tesla advertises; in Austin, about 59%. Tesla now runs rides without a safety driver in eight cities. According to Robotaxi Tracker, Waymo runs more than 4,000 driverless vehicles in the US, and Tesla 666.