GPT-6 Astra Sets ARC-AGI Records, Scoring 99.9% on ARC-AGI-3

GPT-6 Astra set new records across all three ARC-AGI benchmarks, scoring 62.7% in the standard harness and 99.9% on ARC-AGI-3, with costs far below what Opus 5 spent to reach just 30% a month earlier, according to the ARC Prize team.

2026-09-04 ~ 2026-09-04 · 3 related posts

• GPT-6 Astra's full ARC-AGI 1/2/3 results compiled with cost-tier breakdowns — DeArgonaut · 2026-09-04
• GPT-6 Astra scores 99.9% on ARC-AGI-3 for less than Opus 5's 30% run cost — 233C · 2026-09-04
• GPT-6 'Astra' Smashes ARC-AGI Records: 62.7% on Standard Harness, 99.9% on ARC-AGI-3 — repligate · 2026-09-04