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Simulating Humans at Scale: Simile's Joon Sung Park, Sonic AI
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Simulating Humans at Scale: Simile's Joon Sung Park
Sequoia Capital
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Jun 16, 2026
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38:13
Interview
Simulating Humans at Scale: Simile's Joon Sung Park
Joon Sung Park
(Founder and CEO, Simile, guest)
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Executive Summary
Simile is building a platform to simulate human behavior, originating from the 'Smallville' generative agent experiment at Stanford, which demonstrated emergent social behaviors in AI agents.
The company's core technology involves grounding AI simulations with real-world behavioral data, collected through partners like Gallup and from sources like randomized controlled trials (RCTs), to overcome the limitations and 'say-do gap' of general-purpose LLMs.
Simile is commercializing this technology with enterprise clients like CVS for use cases such as concept testing, predicting market reactions, and simulating earnings calls to understand second-order impacts of business decisions.
The long-term vision is to create a 'CERN for human society,' using large-scale simulations to tackle fundamental questions in social science, economics, and policy, such as climate change cooperation or the stability of democracies.
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Processed Jun 17, 2026
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