The San Francisco-based company believes that existing large language models (LLMs) are flawed in their role-playing for market research and brand strategy, failing to effectively predict human behavior. Mirror Particle's "world model" will simulate human behavior and its changes over time across multiple dimensions, including visual perception, spatial reasoning, and social intelligence, rather than solely relying on written language. The company has completed its angel round of funding and is close to finalizing its first venture capital round, with plans to debut next week at TechCrunch Disrupt Startup Battlefield.