GPT-6 Astra Plays Unciv All Night via Computer Use, Loses 3 Games and Burns 24% of Pro Limits

Angaisb_ · x · 2026-09-06

The author let GPT-6 Astra play the open-source civ game Unciv overnight using computer use. It lost all three attempts while consuming 24% of the Pro 20x usage limit, highlighting that frontier agents still struggle with long-horizon strategy. The author speculates that wiring up an MCP to let it learn from mistakes might finally get it a win.

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