Claude Sonnet 5 (Adaptive Reasoning, Max Effort) — benchmark results
Claude Sonnet 5 evaluated in adaptive-reasoning mode at max effort. Provider: Anthropic. Released 2026-06-30. Access: API.
Unified ELO 1915 ± 41, rank #55 of 1776 rated models, from 37 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| Artificial Analysis Intelligence Index | 53.35 | Intelligence Index | 98 |
| AA Omniscience - Software Engineering (SWE) - Julia | 72 | Accuracy (%) | 97.1 |
| AA GDPval | 1607 | ELO | 97 |
| GDPval-AA | 1607 | Elo | 97 |
| AA SciCode | 53.59 | Accuracy (%) | 96.8 |
| AA GPQA Diamond | 91.11 | Accuracy (%) | 95.9 |
| AA Humanity's Last Exam | 39.57 | Accuracy (%) | 95.9 |
| AA Omniscience - Software Engineering (SWE) - Swift | 80 | Accuracy (%) | 95.9 |
| AA-Briefcase | 42.32 | Rubric Pass Rate (%) | 95.7 |
| AA Omniscience | 15.32 | Score | 95.1 |
| AA CritPt | 16.86 | Accuracy (%) | 95 |
| UGI - Writing | 62.71 | Writing Score | 94.8 |
Interactive version: theaggregate.ai/model?slug=claude-sonnet-5-adaptive-reasoning-max-effort · How the rankings work · Data refreshed daily, snapshot 2026-07-22.