# Simile

> Simile is a Palo Alto applied AI lab building a foundation model that simulates human behavior. Spun out of Stanford by the team behind the viral 'Smallville' generative-agents paper, the company builds digital twins of customers, voters, employees and analysts so enterprises can rehearse decisions before making them. It emerged from stealth in February 2026 with a $100M Series A led by Index Ventures.

- **Founded:** 2025
- **Headquarters:** Palo Alto, California, United States
- **Founders:** Joon Sung Park (Co-founder & CEO), Michael Bernstein (Co-founder), Percy Liang (Co-founder), Lainie Yallen (Co-founder)
- **Team size:** ~30 employees
- **Products:** Simile Simulation Platform, Generative Agents (research lineage), Behavior Foundation Model
- **Notable:** Raised a $100M Series A led by Index Ventures within seven months of founding., Backed by both Andrej Karpathy and Fei-Fei Li as angel investors., Reportedly forecasted 8 of 10 analyst questions on a customer's real earnings call.

## Products & services

- **Simile Simulation Platform** — An applied AI platform that builds populations of generative agents based on real humans, then lets companies run what-if simulations - product launches, policy changes, ad concepts, earnings calls.
- **Generative Agents (research lineage)** — Originating from the team's Smallville paper, these are LLM-powered agents that remember, plan, and reflect. They are the substrate of Simile's foundation model.
- **Behavior Foundation Model** — A foundation model trained on interviews with hundreds of people, historical transaction data, and behavioral-science literature - aimed at simulating realistic human decisions.

## Achievements

- Raised a $100M Series A led by Index Ventures within seven months of founding.
- Backed by both Andrej Karpathy and Fei-Fei Li as angel investors.
- Reportedly forecasted 8 of 10 analyst questions on a customer's real earnings call.
- Co-founders authored the influential 'Generative Agents: Interactive Simulacra of Human Behavior' (Smallville) paper.

## Latest updates

- **2026-02** — Emerged from stealth with $100M Series A led by Index Ventures.
- **2026-02** — Announced CVS Health and Telstra as early enterprise customers.

## Links

- Website: https://simile.ai
- LinkedIn: https://www.linkedin.com/company/simile-ai-inc

---

Profile page: https://yespress.io/simile
Published by YesPress — https://yespress.io
Last updated: 2026-06-28