Tesla's Cybercab Robotaxi Fleet Jumped Eightfold in a Month to More Than 300 Vehicles in Austin, With Dallas Up Next. Is Elon Musk's Robotaxi Bet Finally Scaling?

Tesla (NASDAQ: TSLA) says its Cybercab fleet in Austin, Texas, has grown eightfold in just 30 days, reaching more than 300 vehicles. And Dallas could be next.

On Oct. 10, Tesla announced the milestone on X through its official Robotaxi account. Shortly afterward, Ashok Elluswamy, the company's vice president of artificial intelligence software, indicated that Dallas would be the next city to receive Cybercab service.

For CEO Elon Musk, who has spent years promising that autonomous driving would transform Tesla's business, this is encouraging progress. But is Tesla finally turning its robotaxi ambitions into a scalable business?

Image source: Getty Images.

From dozens of vehicles to hundreds in one month

Tesla began offering public Cybercab rides in Austin in September. Its purpose-built robotaxi has two seats and operates without a steering wheel or pedals.

According to Tesla, the fleet has expanded from fewer than 40 vehicles to more than 300 in approximately one month. Texas vehicle-registration data supports the expansion. As of Oct. 10, the state registered approximately 319 Cybercabs and 420 Model Y robotaxis. That's a significant increase in the number of vehicles available for deployment.

However, registration doesn't necessarily mean every vehicle is actively transporting paying passengers. Tesla hasn't disclosed how many Cybercabs operate simultaneously, how many rides they complete, or whether the service is profitable. And those numbers will ultimately determine whether the expansion translates into meaningful revenue.

Why Dallas could be the bigger test

Expanding from one city to another would demonstrate that Tesla's autonomous-driving technology can operate beyond its initial Austin environment. Unlike traditional ride-hailing services, robotaxis don't require a paid driver behind the wheel. That could eventually reduce operating expenses and improve profit margins.

Tesla also manufactures its own vehicles and develops the software that controls them, which could give it an advantage as production increases. But the company does face established competition from Alphabet's (NASDAQ: GOOGL) (NASDAQ: GOOG) Waymo, which already operates a substantial autonomous ride-hailing business. Tesla will need to demonstrate comparable reliability as it expands its fleet and service areas.

Regulatory scrutiny presents another challenge. Federal safety officials are reviewing allegations involving Tesla robotaxis exceeding speed limits in school zones. Regulators are also examining the Cybercab's compliance with vehicle safety standards. Neither review establishes wrongdoing, but both could complicate expansion.

Is Tesla's robotaxi business finally scaling?

Austin numbers suggest Tesla is making genuine progress. An eightfold increase in fleet size in one month is considerably more substantial than another demonstration or an ambitious production forecast. Still, scaling vehicles isn't the same as scaling profits. In other words, we really need to watch for growth in completed rides, customer demand, operating costs, and expansion into additional cities.

Dallas could provide the next meaningful milestone, although Tesla hasn't announced a launch date. But I remain optimistic about Tesla's long-term autonomous-driving potential. Its manufacturing capabilities and growing robotaxi fleet provide a foundation for a potentially lucrative transportation business. Bottom line: Tesla is beginning to demonstrate scale. Now it needs to demonstrate economics. And I suspect we'll start seeing some evidence of that in 2027.

Jeff Siegel has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet and Tesla. The Motley Fool has a disclosure policy.