Google researchers report that four Gemini 4 Argon agents completed Minecraft's Ender Dragon challenge without any human intervention. The agents worked independently but shared information through in-game chat and a common memory, splitting tasks, warning each other about threats, and even recovering items from dead teammates.
The experiment used a randomized survival world with no pre-scouted seeds or game-specific tools. The agents wrote and ran 2,783 programs, exchanged 229 messages, and died 605 times. A fifth "Observer" agent monitored the session for cheating and published live and summary reports.
The run took 27.23 hours and consumed 1.35 billion input tokens, costing $810 at Gemini's list price or $1,620 at standard pricing. The team claims this is the first end-to-end autonomous Minecraft completion by AI agents using only the standard Mineflayer library.
For businesses, the result shows general-purpose AI models can sustain coherent plans across thousands of dependent steps over more than a day, but the compute cost remains a practical consideration. All details come from the single Engadget report; no other sources were available for comparison.