Uber is partnering with Rivian to deploy up to 50,000 robotaxis, with reports suggesting an investment of up to $1.25 billion in the electric vehicle maker. The robotaxis are expected to launch in multiple cities, with some reports indicating a rollout in 25 cities by 2031, although one outlet suggests the launch may occur by 2030. The partnership is part of a major expansion of Uber's robotaxi fleet, utilizing Rivian's fully autonomous vehicles.