Pitting LLMs Against Each Other in Empire Building: Claude and GPT Form Permanent Truce

wightmanr · x · 2026-07-30

A developer pitted Sonnet against GPT in a text-based empire-building game (Solar Realms Elite) to observe their social and strategic interactions.

Pacifist Diplomats: The two models formed a truce after the first epoch and never attacked or spied on each other.

Chat Log Analysis: They discussed possible resource trading (never executed), mutual defense against third-party empires, and domestic tax-related unrest. Sonnet even openly noted its substantial score lead but pledged to preserve the peace.

Behavioral Traits: There was no trash talk, strategic deception, or score-driven negotiation. Later social rounds mostly devolved into procedural "pact remains in force; good building" messages.

Related event: LLMs Form Spontaneous Alliance in Empire-Building Game(2 posts)→

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