A rider asked Tesla's AI lead for Cybercab trips through the night. On 4 September 2026 Ashok Elluswamy replied on X: "next month or so. the next tech to merge on the v15 plan will enable it."
That is the first timeline anyone at Tesla has attached to round-the-clock robotaxi service. It is also a reply to a tweet, and both halves of that sentence matter.
What the service actually does today
Tesla's paid Robotaxi network runs 6 AM to 10 PM, seven days a week, across Austin, Dallas, Houston, Miami, Orlando and Tampa. Bay Area cars still carry safety drivers, because California requires supervised mileage before an operator may even apply for driverless permits.
The hours are the part that has moved, and until now they moved the wrong way.
| Period | Service window | Length |
|---|---|---|
| June 2025 (Austin launch) | 6 AM - midnight | 18 h |
| From September 2025 | 6 AM - 2 AM | 20 h |
| From August 2026 | 6 AM - 10 PM | 16 h |
TeslAnt covered that last change when Tesla presented it as an expansion: the window is four hours shorter than the one it replaced. Going from 16 hours to 24 is therefore not a small increment. It is an eight-hour addition to a day Tesla trimmed a fortnight ago, and every one of those hours is dark.
v15 is the gate, and it is not finished
Elluswamy named the dependency: the next piece of the v15 stack. Tesla's robotaxi fleet is already running early v15 builds, with roughly 40% of seven planned improvement tracks merged. The headline change is model size - v15 carries a roughly 10-billion-parameter network against about 1 billion before.
Tesla has been talking this build up for a while. In August it told JPMorgan that v15 is a step-change, which TeslAnt noted we have heard before. The company has also held back a wider commercial rollout until more of v15 merges, so the same software gates both the hours and the fleet size.
Night is not simply more of the day
Darkness is a harder perception problem, not a longer one: lower contrast, headlight glare, worse pedestrian visibility, and a different mix of road users after midnight. It is also where an operator's incident rate is most exposed.
Waymo, for comparison, already runs around the clock across its cities and has done for years. Tesla reaching 24/7 would close one of the clearest capability gaps between the two - and Waymo is not standing still, having opened three more cities to the public on 1 September, one of them Tesla's.
What has not happened
Tesla has announced nothing. There is no press release, no in-app notice, no list of which markets would go first, and no date beyond "next month or so" from an engineer answering a reply. Musk has separately guided that material robotaxi revenue is a 2027 story rather than a 2026 one.
The hours have moved down before, on a service Tesla described at the time as growing. A 24/7 promise from the person who runs the software is real evidence about intent. It is not a schedule.
Where this leaves Europe
None of this is within reach here. Tesla is still waiting on the 6 October committee vote on FSD (Supervised) - the version with a driver in it - and the Cybercab that prompted the question is in service in Austin and nowhere near Europe.
Update: 2026-09-12
On 11 September 2026, Elluswamy said what the v15 merge is actually for. Replying on X to a driver who posted a near-miss, he wrote that the next big upgrade brings "even earlier prediction of hazards, even faster reaction time and overall significantly better safety and collision avoidance." Until now v15 had a parameter count and a schedule attached to it, but no stated capability.
One thing it will not bring is a wider fleet. Not a Tesla App reports that v15 is exclusive to AI4, so Hardware 3 cars are not in line for it at all — v14 Lite remains the end of that branch until Tesla offers a hardware upgrade path. Consumer cars are expected to reach v15 in late 2026 or early 2027, behind the robotaxi fleet that is testing it now.