TL;DR
US electric vehicle maker Rivian has bought Third Dimension, a UK startup whose AI converts images and video into lifelike 3D environments, TechCrunch reported on 22 October. Rivian will use it to simulate driving scenarios for its driver-assistance software and planned robotaxis. The price was not disclosed. Most of the 15-strong team is based in the UK, and Rivian says the deal lets it expand its London AI hub.
What Rivian is buying
Third Dimension was founded in 2024 by chief executive Tolga Kart and Piotr Sokólski and raised $7 million (about £5m) in seed money; backers include Solari Capital, Soma Capital, MVP and Abstract Ventures. Its technology was first aimed at speeding up video game production, with defence and autonomous vehicles seen as later markets.
The team will join Rivian’s autonomy and AI group under James Philbin. He told TechCrunch the company had evaluated many providers before choosing Third Dimension. The appeal, he said, is taking real recorded scenarios and making them “simulatable”, so engineers can move cameras, shift other road users or change lighting and weather.
Why simulation matters
Self-driving developers lean on simulators to train and test systems, but those built on game engines and synthetic data never quite match real roads, Kart said. Rivian’s bet is that Third Dimension’s approach, combined with its own fleet data, narrows that gap. Philbin said customer vehicles with camera sharing enabled upload more than 400,000 sequences a day.
Philbin singled out validation. Simulating rare edge cases means Rivian does not have to wait for them to happen on real roads before checking whether a system is “good to ship”, Philbin said. Rivian plans hands-free driving on surface streets and highways by the end of 2026, with drivers still supervising, and robotaxi versions of its R2 on the Uber app in 2028.
Looking forward
For the UK, the notable detail is Philbin’s comment that the deal gives Rivian a chance to expand its London AI hub. It follows London-based Wayve’s production agreement with Mercedes-Benz last month. In our view, the size of Rivian’s London hub over the next year will show whether this is an acqui-hire or a lasting investment in UK AI engineering.