Simile Raises $200M at $2B Valuation for Synthetic User Simulation Platform

Simile, an AI startup developing autonomous synthetic user agents for software testing, has closed a $200 million Series B funding round at a $2 billion valuation. Remarkably, the investment arrives just five months after the company secured its $100 million Series A, reflecting immense demand from enterprise software teams.

Simile's platform deploys thousands of simulated AI user personas to interact with websites and applications, discovering usability friction, broken user flows, and software bugs at scale. Product teams structuring campaign parameters can use the [URL Encoder / Decoder](/tools/url-encoder-decoder/) for clean tracking link creation.

Simulating Millions of User Persona Interactions

Unlike traditional automated script testing, Simile's synthetic agents possess diverse behavioral traits and goals, mimicking real human interaction patterns across varied localized environments.

Enterprise Demand for Autonomous UX Auditing

The new capital will be used to expand Simile's cloud infrastructure, scale its research team, and develop domain-specific simulation models for enterprise fintech, e-commerce, and healthcare applications.