Three weeks ago this site reported that independent trackers had counted Tesla's unsupervised fleet growing roughly sevenfold, to close to 200 vehicles across three Texas metros, just before the Cybercab launch event. That article ended on a caveat: the counts and Tesla's stalled mileage claim could not both stay true, and the cheap test was to keep watching.
The counts have now gone the other way. Robotaxi Tracker, the same crowdsourced project, says eight Tesla robotaxis carried passengers in Austin over the past seven days.
The funnel is the story
The interesting number is not eight. It is the distance between eight and everything upstream of it.
| Measure | Vehicles |
|---|---|
| VINs registered with the Texas DMV | 476 (409 Model Y, 67 Cybercab) |
| Registered in the last 30 days | 285 |
| Matched to a licence plate seen on the road | 265 |
| Seen at all in the last 30 days | 179 |
| Carrying passengers in the last 7 days | 8 |
Registration is cheap and public. Carrying a passenger is the only step that means the service is running. Tesla has registered 285 vehicles in a month and is using eight of them to move people, which says the constraint is not vehicles.
What actually changed, and what did not
Two cautions before reading a collapse into this.
The first is scope. Our September figure of close to 200 covered unsupervised vehicles across Austin, Dallas and Houston; today's eight is vehicles seen carrying riders in Austin alone, over a seven-day window. Those are different metrics over different footprints, and the fall from one to the other is not a single measured curve. The original count and its caveats are worth rereading on that point.
The second is provenance. Every figure here comes from volunteers logging sightings, not from Tesla. Tesla publishes no fleet or ridership data, has not commented on these numbers, and a tracker that misses a car cannot distinguish "not running" from "not seen". The direction of travel is well-evidenced; the precise integers are not.
What survives both cautions is the comparison Tesla cannot argue with on scope grounds: within Austin, on the same metric, active vehicles ran at 20 to 40 for most of the year, spiked past 100 in early September around the 3 September Cybercab event, and are now at eight. Eight is roughly where the service started in June 2025.
Fifteen months, no net growth
That is the sentence worth sitting with. The robotaxi service launched in Austin in June 2025 with about eight cars. Fifteen months, one purpose-built vehicle launch and 476 registered VINs later, the number of Tesla robotaxis that carried a passenger in Austin last week is about eight.
The Cybercab did not change it. Sixty-seven Cybercabs are registered in Texas; the spike they produced lasted weeks and then went away, which fits a launch-event surge better than it fits a fleet ramp. It also fits the operational picture from the 70-minute Cybercab ride that avoided freeways entirely — a vehicle that is out on the road and demonstrably restricted in where it can go.
Why Europeans should care about a number in Texas
Because Texas is the evidence base. Unsupervised FSD is approved nowhere in Europe, and a steering-wheel-free Cybercab is a higher approval class again. When Tesla eventually takes its case to a European type-approval authority, what it will bring is operating data from Austin — and NHTSA is already asking its own questions about how the Cybercab was certified.
A regulator assessing that record will care about exposure: how many vehicles, carrying how many people, for how long. Eight active cars produce very little of it. Whatever the honest number turns out to be, the gap between 476 registered and eight carrying passengers is the one a European approval authority will ask Tesla to explain.
Update: 2026-09-26
On 26 September 2026, TexasAVTracker counted 546 Tesla vehicles registered for autonomous ride-hailing in Texas — 420 Model Y Robotaxis and 126 Cybercabs — against the 476 in the table above. The Cybercab half is what moved: 67 when this article was written on 22 September, 69 on 24 September, then 126 two days later, an 83% jump in 48 hours. The eight-vehicle figure at the bottom of the funnel comes from a different project, Robotaxi Tracker, and has not been re-measured since, so the distance between registered and carrying passengers has widened rather than closed. Cybercabs have also been sighted in numbers around Houston, which would require a geofence Tesla has not announced. Source: Tesla Robotaxi and Cybercab fleet in Texas surpasses the 500 mark (420 + 126).