Study finds phase transitions in multi-agent coordination
bravo_abad · x · 2026-08-18
Research by Giordano De Marzo et al. shows that LLM agent coordination can be modeled using statistical physics. In minimal binary-decision settings, agent dynamics map onto the Curie-Weiss model of a ferromagnet. The study identifies a "majority force" parameter (β) and reveals that consensus becomes exponentially difficult beyond a critical group size. Thresholds vary by model: 30 agents for Llama 3 70B, 80 for GPT-4o, 1,000 for GPT-4 Turbo, while Claude 3.5 Sonnet maintained coordination above 1,000. This suggests evaluating agent systems requires statistical-physics-style observables.
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