Tesla's Cybercab fleet in Austin reportedly grows past 300 vehicles

Elon Musk says on X that Cybercab is scaling.

Robotaxi reports that the service now has more than 300 Cybercabs serving Austin, an eightfold increase in 30 days since launch.

The only source for the scaling claim cited here is Musk's post, which states the scaling without giving a vehicle count. The 300-vehicle figure and the eightfold growth come from Robotaxi's report, and no independent verification of the count is included in the reports provided.