Simile

Simile is an AI-driven simulation platform that predicts how and why customers, employees, or populations respond to change. Built for leading enterprises, Simile supports world-class customers like Gallup, CVS Health, Wealthfront, and Suntory to accelerate growth, shorten innovation cycles, and de-risk decisions. The company's founding team introduced original concepts including generative agents, rich agentic simulations, and the term 'foundation model,' giving rise to the field of AI-based simulation. Backed by Index Ventures, Hanabi Capital, Bain Capital Ventures, and A* Capital, along with notable angels including Fei-Fei Li, Andrej Karpathy, Adam D'Angelo, Guillermo Rauch, and Scott Belsky, Simile is headquartered in Palo Alto, CA with a presence in New York.

Enterprise decision-making relies on costly, slow, and often risky traditional research methods that fail to reach niche populations or provide rapid feedback before product launches.

Simile provides a foundation model that predicts human behavior in any situation, deployed through an enterprise simulation platform that delivers instant insights, segments audiences with precision, and enables safe concept testing before real-world launches — including a partnership with Gallup's nationally representative panel.

Simile has raised $100M in a Series A round led by Index Ventures (February 2026). Customers include Gallup, CVS Health, Wealthfront, Suntory Beverages & Food, Banco Itau, Telstra, and Garnett Station Partners, with one customer reporting a 15x expansion in qualitative research scope.