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GPT-5.6 Sol can beat Factorio on peaceful mode

Hacker News

GPT-5.6 Sol can beat Factorio on peaceful mode News

This is about an experiment in which GPT-5.6 Sol, running in Codex at a low thinking level, completed a peaceful (no biters) Factorio run in 13.5 hours of game time. The model played through a game manager and a Python library that let it interact with the game programmatically while enforcing the same restrictions human players face in the GUI, such as player reach and fog of war.

Key takeaways

  • The rocket launch was only achieved through significant 'manual' effort, with Sol repeatedly ferrying supplies between factory areas to paper over late-game failures to connect production systems.

Practical examples

  • A timelapse of the full run is available on YouTube, and the author is working on a more detailed highlights/commentary post and video.
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