Halluminate is a San Francisco startup (Y Combinator S25) building realistic, resettable sandboxes and high-quality datasets to train and evaluate computer- and browser-use AI agents. Its flagship project, Westworld, is a fully simulated internet of synthetic consumer and enterprise apps where agents practice economically valuable tasks - booking flights, financial modeling, reorganizing data - against programmatic verifiers that produce reinforcement-learning reward signals. Customers include foundation-model labs and browser-agent companies.
Jerry Wu is the co-founder and CEO of Halluminate (YC S25), a San Francisco startup building synthetic, fully-simulated versions of the internet so AI agents can learn to use computers and browsers reliably. A Cornell computer science and economics graduate who once researched model quantization, he previously led product and research at Capital One Labs, where he shipped one of the first AI agents in financial services and co-authored three patents. With longtime collaborator Wyatt Marshall, he is building what the pair call Westworld: a catalog of realistic sandboxes and expert-annotated evaluations that AI labs use to train and test computer-use agents at scale.