Simile

Simile: AI Digital Twins of People

Simile, a Stanford spinout, builds AI "digital twins" of real people — generative agents trained on interviews, transactions, and research that simulate how individuals and customers actually decide. Companies use those twins to predict how people will react to a product, a feature, or a price before spending money to find out, and even to rehearse high-stakes conversations like analyst questions on an earnings call.

The approach builds on the founders' generative-agents research, aiming to make customer and human-behavior simulation reliable enough for real decisions.

Key Features

• Generative-agent simulation of human behavior
• Digital twins of customers and individuals
• Prediction of reactions to products, features, and pricing
• Trained on real interviews, transactions, and research
• Scenario rehearsal for high-stakes conversations

Ideal Use Case

Simile fits product, research, and strategy teams that want to test ideas, messaging, and pricing against realistic customer simulations before committing budget. It suits enterprises that run extensive market research and want faster, cheaper signal.

How Simile differentiates

Simile is grounded in the founders' Stanford generative-agents research and trains twins on real behavioral data, aiming for fidelity that generic surveys or synthetic personas lack. It raised a $100M Series A led by Index Ventures, with Bain Capital Ventures and angels including Fei-Fei Li and Andrej Karpathy, and lists customers including CVS Health and Telstra.

FAQ

What is Simile? A platform that builds AI digital twins of people to simulate decisions and predict customer behavior.

What is it used for? Testing products, features, and pricing against realistic customer simulations before launch.

What are the twins trained on? Real interviews, transactions, and research.

Who backs Simile? A $100M Series A led by Index Ventures, with angels including Fei-Fei Li and Andrej Karpathy; customers include CVS Health.

tl;dr

Simile is a Stanford spinout building AI digital twins of people to simulate decisions and predict customer behavior, backed by a $100M Series A led by Index Ventures and used by CVS Health and Telstra.