Shumer claims GPT-6 Astra built a Manhattan world in Unreal over a week
chongdashu · x · 2026-09-05
Matt Shumer posted that "GPT-6 Astra" built a Manhattan world in Unreal Engine over the course of a week, going street by street to perfect each one. A commenter asked whether it interfaced with Unreal via MCP. The claim is unverified, but if accurate it would mark a major leap in agent-driven 3D world-building.
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