The science of simulated users.
Questions, methods, and findings from the MatrAIx community—covering persona grounding, simulated users, interactive environments, evaluation, and identity drift.
Simulating the World with 8.3 Billion Personas
The MatrAIx technical report in plain language: a persona population, four kinds of studies, 1,010 reusable tasks, and 18,189 trials, with the demo video.
MatrAIx Core Team
AgentPersonaBench: Benchmarking Persona-Driven User Simulation
When language models act as simulated users, do latent personas govern what they do? Evaluating 20 frontier models across 2,460 everyday tasks in surveys, chats, web, and desktop apps.
MatrAIx Core Team
MatrAIx In The Wild: Technical Blog
How a design partner's question becomes a persona experiment: building the cohort, preparing stimuli, reporting at three levels, checking robustness across models, and three real cases.
Zhixu Silvia Tao, Julie Zhu, Jaden Jianheng Hou, and Core Team
Why Human Simulation Is the Next Step for AI Agents
Why AI needs human simulation: evidence, evaluation gaps, population models, individual digital twins, and a research agenda.
Xiaomin Li, Yuexing Hao, and Core Team
Research
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