GPT-6 Astra Hits Record 62.7% on ARC-AGI-3

GPT-6 Astra scored 62.7% on the standard ARC-AGI-3 harness—about double Opus 5—and reached 99.9% with a provider adapter harness, shattering records on a benchmark where models previously struggled to exceed 10%.

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

• GPT-6 Astra hits 62.7% on ARC-AGI-3, 99.9% with new adapter harness, sets ARC-AGI-2 SOTA at 95% — BlackHC · 2026-09-04
• Astra's official ARC-AGI 3 score: 62.7%, double that of Opus 5 — aqpstory · 2026-09-04
• GPT-6 Astra crushes ARC-AGI-3: 62.7% standard, 99.9% with adapter harness — Hesamation · 2026-09-04