AI-BEN-gineer. Australian data scientist building AI agents, solving hard problems and relentlessly learning. Beat minecraft with AI!
Sydney, Australia
Joined July 2026
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An AI agent has beaten vanilla Minecraft, end-to-end.
From an empty inventory to defeating the Ender Dragon, using the new mine-ai-mcp server I built for gamers and researchers!
Here’s the run—and the engineering that made it work.
🧵 1/6
Typesafe's Jev is great and REALLY fast, but the round trip from Australia took ~300 ms - a little too slow for the quick reactions Minecraft combat needs.
So I distilled Jev Minecraft combat decisions into LightGBM: ~1 ms locally, no API cost, and 90.8% agreement with Jev on movement decisions.
Watch it fight and explore the model:
aibengineering.github.io/min…
Source Code here: github.com/aibengineering/mi…
Jev + Astra beat the ender dragon in 8 minutes 43! very impressive on paper however it only handles a single seed and can't do combat - we did it 5 days earlier and it handles any seed generally, combat included ;)
xitter.cf/aibengineering/status/…
Jev + Astra beats the Ender Dragon in Minecraft in 8 minutes 43 seconds! ⏱️
Cost less than $1 ($0.01 Jev, $0.96 Astra)
I open sourced the code and explain the harness setup below. This type of movement is only possible with Jev's near instant decisionmaking, and some continually learning skills from Astra.
💵Estimated API-equivalent model cost: ~$93 USD for the run.
~88% came from cached context reads: 163.3M cached tokens, versus 148K output tokens including thinking.
Calculated from token usage and API rates—not an actual API bill. Excludes hosting and voice generation.
5/6
Explore the full run:
▶️ Full recording youtube.com/live/ZjtwWEfFVFY
💻 MCP server code
github.com/aibengineering/mi…
📦 Run artifacts + world save
huggingface.co/datasets/aibe…
6/6
