Claude Sonnet 4.6 (Thinking, High): benchmark results
Claude Sonnet 4.6 evaluated with thinking enabled at high reasoning effort. Provider: Anthropic. Released 2026-02-17. Access: API.
Unified ELO 1670 ± 1, rank #180 of 1761 rated models, from 7 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| Generalization V2 (Lechmazur) | 76.3 | Inverse-Rank Score | 86.2 |
| Buyout Game (Lechmazur) | 1656.2 | Bradley-Terry Rating | 80 |
| Persuasion (Lechmazur) | 1.58 | Average Persuasion Strength | 78.6 |
| LiveBench | 75.59 | LiveBench average (self-reported) | 72.3 |
| NYT Connections Extended | 74.1 | Score (%) | 66.3 |
| LLM Chess (Saplin) | 189.7 | ELO | 63.4 |
| Position Bias (Lechmazur) | 37.4 | Order Flip % (lower is better) | 60 |
Interactive version: theaggregate.ai/model?slug=claude-sonnet-4-6-thinking-high · How It Works · Data refreshed daily, snapshot 2026-09-05.