GPT-6 Astra mines a diamond in Minecraft overnight, ex-OpenAI RL vet stunned
mcleavey · x · 2026-09-08
A user asked GPT-6 Astra to mine a diamond in Minecraft via computer use, went to sleep, and woke up to a diamond in its inventory. Ex-OpenAI researcher Reiinakano noted his only non-LLM project at OpenAI circa 2020 was getting tabula rasa RL to work in Minecraft — it never really worked well. "Now it is just one prompt away." The post went viral as a marker of how far agentic capability has come since the 2020-era OpenAI Minecraft RL efforts.
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