Simile AI Raises $200M Series B at $2B Valuation
Stanford PhD-led startup building AI agents to simulate human behavior secures major venture backing.
Simile AI, founded by Stanford CS PhD Joon Sung Park, announced a $200 million Series B at a $2 billion valuation led by Greenoaks with participation from Index Ventures and Bain Capital Ventures. The company develops generative agents and foundation models for simulating individual and societal behavior, with applications in retail and decision testing. Academic supporters including Percy Liang and Michael Bernstein highlighted its research trajectory and commercial potential, noting parallels to early OpenAI work. The round reflects investor confidence in scaling simulation technologies for real-world use cases.
Today we’re announcing our Series B. We’ve raised $200M at a $2B valuation from Greenoaks with participation from Index Ventures, Hanabi, A*, Bain Capital Ventures, CVS Health Ventures, and Definition. Our mission is to simulate all eight billion people on earth, accurately.
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33 postsIt's time to scale that Simile. Our ambition is to build a foundation model that can predict what anyone will do in any situation. Research-wise, Simile in 2026 for simulation is like OpenAI in 2019 for AI assistants - signs of life, a path to scaling, yet still many open…
Today we’re announcing our Series B. We’ve raised $200M at a $2B valuation from Greenoaks with participation from Index Ventures, Hanabi, A*, Bain Capital Ventures, CVS Health Ventures, and Definition. Our mission is to simulate all eight billion people on earth, accurately.
Today we’re announcing our Series B. We’ve raised $200M at a $2B valuation from Greenoaks with participation from Index Ventures, Hanabi, A*, Bain Capital Ventures, CVS Health Ventures, and Definition. Our mission is to simulate all eight billion people on earth, accurately.
@simile_ai Onwards and upwards!
From inception a year and half ago until today @simile_ai has made incredible progress. Their ability to simulate human preferences will create enormous value for businesses around the world. Delighted for this round of financing - thank-you Neil Mehta and the team @Greenoaks…
Today we’re announcing our Series B. We’ve raised $200M at a $2B valuation from Greenoaks with participation from Index Ventures, Hanabi, A*, Bain Capital Ventures, CVS Health Ventures, and Definition. Our mission is to simulate all eight billion people on earth, accurately.
Huge congrats to @joon_s_pk and team!! Simile looks awesome!!
Today we’re announcing our Series B. We’ve raised $200M at a $2B valuation from Greenoaks with participation from Index Ventures, Hanabi, A*, Bain Capital Ventures, CVS Health Ventures, and Definition. Our mission is to simulate all eight billion people on earth, accurately.