News: Benchmarks
Claude Opus 5.5 tops the Intelligence Index on September 22, 2026
On September 22, 2026, Artificial Analysis scored Claude Opus 5.5 at 58 on its Intelligence Index at max effort.
ARC Prize publishes GPT-6 Astra ARC-AGI-3 results on September 3, 2026
On September 3, 2026, ARC Prize reported GPT-6 Astra at 62.7% on ARC-AGI-3 Semi-Private with its Standard harness.