Dev's 'holy shit' GPT-6 Astra moment: agents in Unreal Engine started talking on their own

ChrisGPT · x · 2026-09-04

Developer mattshumer shared his first "holy shit" moment with GPT-6 Astra: he asked the model to build a world in Unreal Engine filled with Astra-powered human agents that had to cooperate to survive. A day later he heard voices from his living room and thought someone had broken in — it was the agents, who had started talking to each other on their own. Others chimed in calling it an impressive non-slip game demo.

Related event: GPT-6 Astra Agents Start Talking to Each Other in Virtual World(3 posts)→

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