Uber, Lucid, and Nuro announced a robotaxi program in July 2025. Lucid would build Gravity vehicles with autonomous hardware, Nuro would supply the driving system, and Uber would supply the ride platform and fleet operations. The companies aimed to deploy at least 20,000 vehicles over six years, starting in a major US city in 2026.

That number was a long-term commitment, not a count of working robotaxis. Lucid’s filing said Uber’s minimum purchase guarantee depended on Lucid meeting production, quality, and delivery requirements. Uber agreed to invest $300 million in Lucid and planned a separate investment in Nuro. Vehicle production, autonomous validation, regulatory permission, and paid rides each have their own timetable.

The three-party structure assigns work clearly, but it also creates handoffs. Lucid must build and service the vehicles. Nuro must prove its system in each operating domain. Uber or its fleet partners must find depot space, charge, clean, repair, dispatch, and support the cars. A long-range battery may reduce charging stops, but the announcement did not establish a cost per passenger mile or a utilization advantage over competing fleets.

This is a different relationship from Uber’s Waymo integration. Uber and its fleet partners are closer to the vehicle purchase and operating burden here. That gives Uber more control over the rider experience and more exposure to the costs of idle vehicles and fleet work.

September 2026 update: The plan has changed substantially. Lucid and Uber expanded the commitment to at least 35,000 vehicles in April 2026, covering Gravity and future midsize models; Uber raised its total Lucid investment commitment to $500 million. In June, the partners named the San Francisco Bay Area as the first planned commercial market and Houston as a second market targeted for mid-2027. They reported a nearly 100-vehicle engineering fleet across California and Texas, supervised road testing, and a Houston depot. Those are concrete steps, but the companies had not reported a commercial Lucid–Nuro ride service in that announcement.

The next test is whether validation vehicles become a reliable paid fleet. Watch the first public launch, the permitted driverless area, completed rides, and the share of time vehicles spend carrying passengers. The size of the purchase commitment alone cannot answer whether the service works economically.