AI Startup Simile Completes $200 Million Series B at $2 Billion Valuation
AI startup Simile has completed a $200 million Series B financing at a $2 billion valuation, just five months after raising $100 million in Series A funding.
This round was led by Greenoaks, with participation from Index Ventures, Hanabi, Bain Capital Ventures, A*, Factory, Definition, and CVS Health Ventures, with CVS also being a major client.
The company was founded by Stanford PhD Joon Sung Park, whose doctoral project "Smallville" allows AI agents to simulate human life, aiming to accurately replicate all 8 billion people on Earth for marketing and product research.
Source: Public Information
ABAB AI Insight
Joon Sung Park is known for the Smallville project, which showcased AI agents living, socializing, and making decisions autonomously in a virtual town. Simile has expanded this into a synthetic user platform for enterprises, serving clients like CVS and Deloitte for product testing and decision simulation.
On the capital front, the $100 million Series A led by Index quickly escalated to a $200 million Series B led by Greenoaks, achieving a $2 billion valuation in just five months. This reflects a high premium chase by VCs in the "AI digital twin population" sector, with funds used to expand behavioral model training and enterprise deployment.
Similar cases can be seen with synthetic user startups like Aaru also receiving high valuations, and early generative agent research moving towards commercialization; current AI applications are in a phase of specialized expansion from general dialogue to high-fidelity behavioral simulation.
Essentially, this represents a technological replacement: traditional market research is being replaced by large-scale, repeatable AI agent simulations, where the mechanism lowers the threshold for real user testing and accelerates product iteration due to low-cost, high-throughput simulations.
ABAB News · Cognitive Laws
- Doubling valuation in five months is standard for AI.
- Simulated populations are faster than surveying real people.
- Academic projects can directly monetize into unicorns.