Tesla has finally put its long-promised self-driving taxi on public roads, launching a robotaxi service in Dallas and Houston. According to 24/7 Wall St., the move makes real a pledge the company has been repeating for roughly a decade, and Tesla's stock jumped on the news.

The outlet frames the launch as a milestone that investors had grown skeptical of after years of missed timelines. Seeing driverless Teslas actually operating on the streets of two major Texas cities is the kind of concrete proof that markets had been waiting for, which helps explain the share-price pop.

But 24/7 Wall St. does not treat this as a simple win-for-Tesla story. It pairs the robotaxi debut with chipmaker Nvidia, arguing that Nvidia "quietly posted numbers that rewrote what an AI business looks like." The piece is written as a head-to-head comparison — "NVIDIA Vs. Tesla" — and its provocative conclusion is that even as Tesla delivers on its robotaxi vision, buying Nvidia may be the better bet.

The source does not provide specific figures for the number of vehicles deployed, the scale of the Texas rollout, or Nvidia's exact results, so those details remain unstated here.

Why it matters: after years of promises, a working driverless-taxi service on real city streets is a tangible test of whether autonomous vehicles can move from demo to daily life — and a reminder that the money and momentum in AI may still favor the companies selling the chips rather than the ones building the cars.