Electric vehicle maker Rivian has acquired Third Dimension, a UK-based startup specializing in AI-generated 3D world modeling, to boost its self-driving and advanced driver-assistance capabilities. Founded in 2024 by veterans from gaming and autonomous vehicle sectors, Third Dimension’s technology converts real images and videos into detailed 3D environments. Rivian plans to integrate this into its autonomy team, led by James Philbin, to create more accurate simulations that can enhance training and testing of their driver-assistance systems and future robotaxis planned for Uber.

The acquisition brings Third Dimension’s 15-person team into Rivian’s AI division and strengthens its London hub. Originally designed to facilitate video game development, Third Dimension’s tools will now focus solely on autonomous driving, helping Rivian simulate real-world scenarios more faithfully than traditional video game-style virtual environments. This technology addresses the critical “sim-to-real” gap, enabling Rivian to manipulate and test different driving conditions like lighting and weather using its vast real-world driving data collected from customer vehicles.

Rivian currently offers a Universal Hands-Free driving feature mainly for highways and aims to release a version capable of full surface street driving by the end of the year, albeit requiring driver supervision. The company’s long-term goal is full autonomy with its R2 SUV robotaxis available through Uber in 2028. Leveraging Third Dimension’s AI technology combined with Rivian’s daily uploads of over 400,000 real driving sequences will help the automaker simulate rare and complex edge cases essential for validating autonomous driving safety and readiness for market deployment.

According to Rivian’s James Philbin, the integration of Third Dimension technology will provide a powerful simulator based on actual road experiences rather than synthetic data, significantly improving the trustworthiness of testing processes. Third Dimension CEO Tolga Kart expressed enthusiasm about focusing on a single, large-scale problem with significant real-world impact. This deal, with undisclosed terms, underscores Rivian’s commitment to accelerating its self-driving ambitions by fusing cutting-edge AI modeling with its extensive real-world driving insights.