Tesla rolled out autonomous robotaxis in Austin on Sunday to a limited group of testers. CEO Elon Musk said in a post on social media platform X that customers were charged a flat fee of $4.20. The launch puts Tesla head-to-head with Alphabet-backed Waymo,

Tesla has started giving rides in driverless Model Y SUVs in Austin. Details are still sparse, but limited service is open to vetted and invited riders.

Elon Musk's Tesla enters the self-driving taxi game, an industry with big names like Waymo and Zoox in the U.S. Here's what you need to know.