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Simulating Humans at Scale: Simile's Joon Sung Park

Sequoia Capital · Jun 16, 2026 · Industry Trends

Simile founder Joon Sung Park is building an applied AI lab to simulate human behavior and societies at scale.

“I do see an opportunity today to really take the first crack at building the simulation. I would not have said that even 5 years ago, but that is a conviction that we have built up over the years as we are going deep into this research.”

Joon Sung Park, founder and CEO of Simile, discusses building an applied AI lab that uses LLM-based generative agents to simulate human behavior and societies, building on his Stanford 'Smallville' research where 25 agents exhibited emergent social behaviors. This signals a growing industry direction toward LLMs as engines for believable human simulation, with applications for modeling and guiding society.

generative-agents human-simulation llm-agents stanford smallville

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