Claude Sonnet 5 (xHigh): benchmark results

Claude Sonnet 5 evaluated at the xhigh reasoning-effort setting. Provider: Anthropic. Released 2026-06-30. Access: API.

Aggregate Rating 1793 ± 11, rank #151 of 2168 rated models, from 128 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
LiveBench Logic With Navigation86Score94.3
RuBench (Fresh-11)75.8Pass@1 (%; the 11 tasks with fix commits after 2026-06-17, e88.9
AA-Omniscience Index - Software Engineering (SWE) - Julia36Omniscience Index88.2
LiveBench Spatial100Score87.9
Epoch AI - GPQA Diamond90.53Accuracy (%)87.2
Artificial Analysis Intelligence Index34.38Intelligence Index86.6
AA-Omniscience Index - Software Engineering (SWE) - Swift52Omniscience Index86.5
LiveBench Code Generation83.1Score86.4
AA Humanity's Last Exam39.02Accuracy (%)85.9
AA CritPt15.43Accuracy (%)84.5
AA-Omniscience Index - Software Engineering (SWE) - Kotlin34Omniscience Index83.4
EnterpriseOps-Gym-AA - Teams48Task Success (%)82.7

Interactive version: theaggregate.ai/model?slug=claude-sonnet-5-xhigh · How It Works · Data refreshed daily, snapshot 2026-10-20.