Rivian pays unknown sum to turn 400,000 daily customer clips into 3D training data

Rivian acquired Third Dimension, a 15-person startup based in the United Kingdom, to convert customer driving footage into three-dimensional test environments for its self-driving software. The deal was first reported by TechCrunch, and Rivian did not disclose the purchase price. The acquisition targets the gap between frequent, mundane driving and the rare, hazardous scenarios that challenge autonomous systems.

The company was founded in 2024 by Tolga Kart and Piotr Sokólski. Kart previously worked on Autopilot simulation at Tesla for more than two years and led engineering at Parallel Domain. Sokólski spent four years at Wayve building photorealistic neural simulators. The startup raised a $7 million seed round in October 2024 led by Felicis, listing game studios and autonomous vehicle companies as potential customers.

The entire Third Dimension team is joining Rivian's autonomy and AI group, which is led by James Philbin. The move expands Rivian's presence in London. Philbin stated that simulation is central to training and validating autonomous driving systems. He described the technology as a tool that turns real-world data into detailed 3D environments.

The method relies on camera data shared by owners of the R1S, R1T, R2, and commercial vans. Philbin said the fleet sends back more than 400,000 driving sequences every day. Most of this material is uneventful. Engineers use the rare events, such as a mattress in the fast lane or a police officer waving traffic through a red light, to recreate scenes in 3D. This allows them to alter variables rather than wait months for such events to occur naturally.

Rivian faces a strict timeline for autonomy. In March, Uber agreed to invest up to $1.25 billion in Rivian to deploy R2 robotaxis. Only $300 million is paid upfront. The remainder depends on autonomy milestones, including 10,000 driverless R2 vehicles on Uber's network in San Francisco and Miami starting in 2028.

Consumer timelines have also shifted. Rivian's point-to-point driving feature is due to reach a small group of invited Autonomy+ owners later this year. Those testers must sign a nondisclosure agreement. Eyes-off driving, which CEO RJ Scaringe promised for 2026 in January 2025, is now targeted for 2027. Level 4 capability is planned for 2028 on Gen 3 hardware.

Other manufacturers are pursuing similar strategies. Waymo unveiled its Waymo World Model in February, built on Google DeepMind's Genie 3, to generate scenarios its vehicles have not encountered. Tesla has also shown a neural world simulator for its Full Self-Driving software.

The acquisition places Rivian in a competitive field for autonomy infrastructure. The team brings specific experience from Tesla and Wayve. The approach uses real data to build test beds, which is a method used to stress-test algorithms before they encounter live traffic.