Watch an AI agent build a Minecraft scene block-by-block in a 6-hour timelapse

flowersslop · x · 2026-10-26

flowersslop argued standard Minecraft evals are too forgiving, so he tasked model 6.1 with a harder setup: a worker that can't fly or place floating blocks had to build a sandbox scene (with cute custom furniture blocks) one block at a time.

The build would have taken 6 real-time hours, and he published the full timelapse video showing the agent working under these constraints.

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