Claude Opus 4.8 (Medium): benchmark results

Provider: Anthropic. Released 2026-05-28. Access: API.

Aggregate Rating 1784 ± 20, rank #176 of 2170 rated models, from 30 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
BabelArena - ClawEval55.8Pass^1 (%; ClawEval (service orchestration, multimodal perce100
NOLLI - Average78.3Accuracy (%; 25-task macro average)92.9
NOLLI - Cipher - English93Accuracy (%)92.9
NOLLI - Cipher - Korean69.3Accuracy (%; jamo script)92.9
NOLLI - Cryptarithmetic - English89.7Accuracy (%)92.9
NOLLI - Cryptarithmetic - Korean95Accuracy (%; jamo script)92.9
NOLLI - Direct Translations - English79.6Accuracy (%; eight translated puzzle types)92.9
NOLLI - Direct Translations - Korean77.4Accuracy (%; eight translated puzzle types)92.9
NOLLI - Korean Cultural Systems77.2Accuracy (%; kinship, saju, time and units)92.9
NOLLI - Jamo Composition47Accuracy (%)85.7
WeirdML76.04Average Score85.1
CADWorld16Task success rate (%; 200 long-horizon FreeCAD tasks in 11 w83.3

Interactive version: theaggregate.ai/model?slug=claude-opus-4-8-medium · How It Works · Data refreshed daily, snapshot 2026-11-05.