How Test Harness Design Impacts ARC-AGI-3 Scores
dkundel · x · 2026-07-30
Developer @ilanbigio wrote up an analysis detailing how the testing harness impacts model scores on the ARC-AGI-3 benchmark across both capability and efficiency. The key takeaway is the necessity of tracking reasoning steps and utilizing context compaction to achieve optimal results.
Related event: ARC-AGI 3 Evaluation Mechanism Under Fire from Developers(9 posts)→
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