Antioch Closes $32M Series A Led by Greylock for High-Fidelity Physical-AI Simulation

Antioch, founded by Tesla and Meta Reality Labs alumni, closed a $32M Series A led by Greylock on September 8, with A*, Category Ventures, Box Group and Icehouse Ventures joining. The platform runs high-fidelity simulations for robotics and autonomy teams, scaling from single experiments to thousands of parallel evaluations to cut costly real-world data collection. Combined with an $8.5M April seed and pre-seed, Antioch has raised ~$44.6M; angels include Palantir CTO Shyam Sankar and NVIDIA's Ian Andrews.