Waymo and Uber quietly part ways in Phoenix

In the three years since, Waymo has grown its fleet to around 4,000 vehicles, and Uber has inked deals to add dozens of autonomous vehicle partners to its network.

This Phoenix partnership remained an unusual one, as it was the only city where Waymo operated directly and through Uber. Waymo is in the process of launching in around 20 new cities this year, is operating in 11 major U.S. metro areas, and the company offers more than 500,000 trips every week.