Tesla's ambitious robotaxi project has hit a significant roadblock, with the company reporting a 36% quarter-over-quarter decline in paid miles travelled by its autonomous fleet. Despite expanding its nascent operation to six new cities across Texas and Florida, the network covered only an estimated 700,000 miles for paying customers in the second quarter of 2026, down from approximately 1.1 million miles in the first quarter.
This downturn in activity directly contradicts Tesla's long-held vision of a vast, revenue-generating robotaxi fleet, a strategy CEO Elon Musk previously described as going "balls to the wall for autonomy." The figures, released by Tesla on Wednesday, coincide with weaker-than-expected profits in the company's core businesses, leading to a more than 13% plunge in Tesla's stock in early trading on Thursday.
During a conference call discussing the second-quarter results, Mr. Musk explained that the slower rollout is primarily due to the necessity of accumulating specific driving data for the Cybercab, the company's dedicated two-seater autonomous vehicle. Unlike its existing Model 3 and Model Y vehicles, for which extensive data has been gathered, the Cybercab requires bespoke calibration and testing before a wider deployment. This marks a notable shift from previous claims that Tesla's vast fleet of customer cars was continuously collecting data to train future robotaxis.
Tesla executives also emphasised a cautious approach to safety. Mr. Musk highlighted concerns that even a single accident involving a Tesla robotaxi could trigger widespread negative media attention and prompt immediate regulatory intervention. While acknowledging the high number of annual automotive fatalities in the United States, he stressed that a robotaxi incident would be scrutinised far more intensely, potentially hindering the project's progress.
The regulatory landscape for autonomous vehicles remains complex and evolving. In the UK, the government is working on frameworks to govern self-driving technology, with safety and liability being key considerations. The EU's AI Act, while primarily focused on artificial intelligence, also touches upon high-risk AI systems, which could include fully autonomous vehicles, potentially influencing future UK regulations through alignment or divergence.