First recorded LLM NetHack ascension: GPT 6 Astra scores 1.77M points over 37,140 turns
gleech · x · 2026-09-26
gleech announces CodexDelver, an LLM agent played by GPT 6 Astra via remote terminal, ascended NetHack 3.6.7 on Hardfought: 37,140 turns, 1,766,446 points, lawful dwarven Valkyrie (Sept 21, 2026).
- Claimed as the first recorded LLM-agent ascension — a historical-priority claim, not a benchmark; the non-LLM bot BotHack ascended years earlier.
- Anti-cheat: the run used a custom harness Astra itself wrote, with moves logged on a remote server and a hash-linked audit ledger.
- The open-source repo kenforthewin/nethackastra includes the full harness: persistent tmux/SSH sessions, conservative checked movement batches, navigation and Sokoban assistance, ANSI spectator rendering.
Related event: GPT-6 Astra Ascends NetHack on Third Attempt in First Recorded LLM Run(7 posts)→
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