Uber Technologies and Waymo have ended their three-year robotaxi partnership in Phoenix with the split actually occurring in May and only becoming public after riders noticed the autonomous vehicles vanishing from the Uber app.
The partnership, which began in 2023, deployed just over a dozen Waymo vehicles on Uber's platform in the Arizona capital. Uber described the arrangement as an "intentionally limited deployment" aimed at learning how to scale robotaxi operations. Waymo has reintegrated those vehicles into its own Phoenix fleet while maintaining a separate delivery agreement with DoorDash.
The termination is limited to Phoenix. Waymo vehicles remain available on Uber in Austin and Atlanta, where hundreds of Waymo robotaxis now operate exclusively through the Uber app and continue to expand coverage. Both companies also plan separate launches in London later this year, signaling a shift toward direct competition rather than partnership in international markets.
The relationship has shown signs of strain. Uber Chief Technology Officer Praveen Neppalli Naga publicly described Waymo driving behaviour as "scary" in a social media post responding to a viral incident. The partnership wind-down suggests deeper tensions between the two companies, which function simultaneously as partners and competitors across multiple markets.
Waymo operates approximately 4,000 autonomous vehicles across 11 US metros and processes more than 500,000 trips per week, giving the company confidence that it no longer needs aggregators like Uber to fill seats in mature markets. Phoenix, where Waymo launched the first paid passenger rides on its own app in 2020, represents the company's strongest market. The decision to withdraw from Uber in Phoenix signals that Waymo's fleet has grown large enough to sustain demand independently.
The split also reflects Uber's strategic shift. Rather than depend on a single autonomous vehicle provider, Uber has signed partnerships with more than a dozen AV developers, including Zoox, WeRide, Avride, and Baidu. The company is positioning itself as a platform-agnostic robotaxi aggregator, attempting to replicate the model that made it dominant in traditional ride-hailing.
The timing is notable. Waymo issued a recall of nearly 3,900 robotaxis in the US weeks before the Phoenix announcement after discovering a software issue that could cause vehicles to enter closed freeway construction zones and continue driving. The safety concern may have accelerated discussions about the partnership's future.
The robotaxi market is consolidating rapidly. Cruise, the rival autonomous vehicle startup backed by General Motors, largely exited the market after a series of safety incidents. That collapse has left Waymo and Uber as the dominant players, though Wayve in the UK and others are expanding capacity. The end of the Phoenix partnership signals that market consolidation is producing fewer joint ventures and more direct competition between rivals.
Uber plans to announce a replacement autonomous vehicle partner for Phoenix soon, though it did not name the company. The unnamed successor suggests Uber may be testing relationships with emerging AV providers to diversify its supplier base.
