Third Dimension AI

Third Dimension AI is a spatial generation company founded in 2024 by chief executive Tolga Kart and chief technology officer Piotr Sokolski, with a team of around 15 people, most of them in the United Kingdom. Kart was previously vice president of engineering at Parallel Domain, worked on Autopilot simulation at Tesla and was a senior director on Call of Duty at Activision's Sledgehammer Games, and Sokolski spent four years building neural simulators for self driving at Wayve and more than three years at Google. The company raised a $7 million seed round in October 2024 led by Felicis, with Abstract Ventures, MVP Ventures, Soma Capital and Solari Capital among the participants, and it first pitched the technology as a way to build game worlds from images and video before concentrating on autonomy.

SuperSim, introduced on December 9 2025, is its neural simulator built from real sensor data. Customers send sensor logs of video, lidar, IMU and positional traces, and SuperSim reconstructs the scene with neural rendering and Gaussian splatting alongside SLAM, structure from motion and classical geometric alignment. World models then generate novel views, fill in missing regions and insert 3D objects, so a single capture expands into thousands of scenario variations for training and validation. Third Dimension says a reconstruction takes hours rather than the months of hand authored scene building, that simulations render faster than real time, and and that at launch most reconstructed clips ran 30 to 60 seconds. Third Dimension pitched SuperSim to teams already on NVIDIA Omniverse as a clip to sim bridge, and described an experimental cross platform sensor transfer that re-renders a reconstruction as if the robot had carried different cameras or lidars.

Christian Rupprecht, an associate professor in Oxford's Visual Geometry Group and a co-author of VGGT, the CVPR 2025 best paper, joined as chief researcher in January 2026 while continuing his association with Oxford, and now writes for the company as chief research officer. Gernot Riegler, formerly of Intel's Intelligent Systems Lab, Amazon Prime Air, Unity and Luma AI, works on dynamic reconstruction for customers, 4D scenes in which objects move over time. In August 2026 Rupprecht set out the company's position on world models as a steerable data generator and simulator, built first from high fidelity multimodal reconstruction of real data and then extended with programmable generation of new variations and scenarios.

SuperSim is sold to autonomous vehicle, drone and industrial robotics teams by demo request, and the company has never published pricing, deployment options or a hardware requirement. Reconstruction and rendering run on Third Dimension's side of the engagement from the sensor logs a customer provides, and the company site carries a SOC 2 seal. Games and film are described as a future area rather than a current offering.

On October 22 2026 Rivian acquired Third Dimension AI, Inc. for undisclosed terms. The leadership and technical team join Rivian's Autonomy research and engineering group under James Philbin, senior vice president of Autonomy and AI, who told TechCrunch the deal lets Rivian expand its AI hub in London and that Rivian receives more than 400,000 driving sequences a day from customer vehicles with camera sharing enabled. Rivian says the platform will be deployed in house to recreate and vary driving scenarios for its driver assistance and self driving systems, including the robotaxis it plans to supply to Uber. Neither Rivian nor Third Dimension has said whether SuperSim continues as a product for outside customers, and the company site still carries its demo request form.