ReSim.ai Information

ReSim is a test orchestration and evaluation platform for physical AI. Teams building robots, autonomous vehicles, drones, and other embodied systems use it to run tests across simulation, recorded real-world data, and physical hardware, and to score every result against metrics they define. ReSim is not a simulator. It runs on top of the tools a team already uses, including Isaac Sim, GitHub, GitLab, Foxglove, and S3, orchestrating and evaluating tests rather than generating them. When code changes, relevant tests run automatically, and results come back with programmable, open-source metrics attached, so regressions are visible before deployment rather than after. ReSim is used by teams including Dexterity, John Deere, and OpenAI, and has run millions of simulations, tested tens of thousands of commits, and caught thousands of regressions before they shipped. Teams can adopt ReSim fully or start lighter, running tests in their own environment and piping metrics in for dashboards and longitudinal tracking. ReSim supports work across the full development cycle, from early hardware and field experiments through production-scale testing. resim.ai