Simulating Earth-Scale Societies: Light Society Runs 1 Billion LLM-Powered Agents
krishnan · x · 2026-08-12
Light Society: A Planetary-Scale Social Simulation Framework
- Core Breakthrough: Combines LLMs with traditional Agent-Based Models (ABMs) to create a simulation framework capable of handling over 1 billion agents.
- Technical Optimizations: Utilizes a mixture-of-models engine (combining full LLMs with distilled surrogates) and system-level optimizations to significantly reduce computational costs.
- Data Grounding: Grounded in real-world demographic profiles from the World Values Survey.
- Applications: Successfully simulated complex social phenomena like Trust Games and opinion diffusion at a billion-agent scale, providing a high-fidelity foundation for studying emergent collective behaviors.
The paper is authored by researchers from Microsoft Research and the University of Science and Technology of China.
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