GPT-6 Astra scores 99.9% on ARC-AGI-3 for less than Opus 5's 30% run cost
233C · reddit · 2026-09-04
Citing the ARC Prize blog, a Reddit post reports GPT-6 Astra hit 99.9% on ARC-AGI-3 for less money than it took Opus 5 to reach 30% just a month ago — implying an order-of-magnitude jump in cost-efficiency on abstract reasoning benchmarks.
Related event: GPT-6 Astra Sets ARC-AGI Records, Scoring 99.9% on ARC-AGI-3(3 posts)→
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