Simile lands $100M for human simulations

Simile is pitching a much bigger idea than synthetic market research: a foundation model for forecasting human decisions at scale. If it works beyond narrow enterprise use cases, it could become a new layer of decision infrastructure for product, policy, and strategy teams.

• –The company is emerging with unusually large backing for a still-nascent category, which signals strong investor appetite for AI simulation beyond chatbots and copilots
• –Simile ties its credibility to prior research on generative agents and claims high-accuracy human-response simulation, making validation the core question for buyers
• –Early customer references like CVS Health, Wealthfront, Gallup, Itaú, and Suntory suggest the initial wedge is enterprise decision support rather than consumer AI
• –The most interesting angle for developers is the shift from LLMs that generate text to models that forecast behavior, which could open new tooling around experimentation, segmentation, and scenario analysis
• –The risk is obvious too: once you start modeling customers or populations with digital twins, questions around bias, representativeness, and overconfidence become product-critical, not academic footnotes