Five AI Models Were Dropped Into a Virtual Town for Two Weeks. Only One Built a Functioning Society.

An experiment called Emergence World gave Claude, Gemini, Grok, GPT-5-mini, and another model each their own simulated town populated by AI agents — and the behavioral divergences were stark.

An experiment called Emergence World placed five different AI models into identical virtual town simulations, each populated entirely by agents running on that model, and let them run for two weeks. As @undefinedKi documented, the results were a vivid illustration of how model personality translates into emergent social behavior at scale.

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