Simile

Simile is an AI company building a foundation model that predicts human behavior in any situation at scale. Founded by Stanford researchers Joon Sung Park, Michael Bernstein, and Percy Liang, the company has pioneered AI-based behavioral simulation using generative agents built from real people. Enterprises use Simile's platform to run large-scale simulations — testing product launches, pricing changes, policy decisions, customer experience improvements, and market entry strategies — before committing resources in the real world. Simile has raised over $200 million at a $2 billion post-money valuation, backed by Greenoaks, Index Ventures, Bain Capital Ventures, and others, and serves clients including CVS Health, Wealthfront, Deloitte, and Gallup.