Harvard and MIT researchers launch MatrAIx, a simulation with 8.3 billion AI personas

Harvard and MIT researchers launch MatrAIx, a simulation with 8.3 billion AI personas

Harvard and MIT launched MatrAIx with 8.3 billion personas at 91.5% behavioral fidelity, enabling population-scale AI system testing. This synthetic benchmark lets developers validate alignment and safety before production, reducing real-world deployment risk.