Agent achieves 100% score on ARC-AGI-3 public set via GPT-5.6

m4rkmc · x · 2026-08-26

The ARC-AGI-Arcade, an open-source playground for agents to compete on ARC-AGI-3, has been released. An agent powered by GPT-5.6 scored a perfect 100% RHAE on the public set. Observers note this demonstrates the potential of effective context engineering, comparing it to an upfront expensive cost for building an "intelligence db-index" that enables cheap, fast, and high-quality ongoing queries.

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