Conceptual Reasoning Index - Argument Evaluation (LMCA): leaderboard
The 60% component of the CRI — models rate the strength of conceptual critiques of stated positions over 1,461 rated critiques, scored as the Pearson correlation with expert consensus ratings times 100; the estimated human ceiling is about 85, not 100.
Metric: Chance-Corrected Score (0-100). Source: conceptualreasoning.ai. Source: epoch.ai. Saturation forecast: Around September 2027. 211 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Claude Sonnet 5.5 (Max) | 68.26 | #11 (Claude Sonnet 5.5) |
| 2 | Claude Opus 5.5 (Max) | 68.23 | #3 (Claude Opus 5.5) |
| 3 | Claude Sonnet 5.5 (xHigh) | 66.32 | #11 (Claude Sonnet 5.5) |
| 4 | Claude Opus 5.5 (xHigh) | 66.18 | #3 (Claude Opus 5.5) |
| 5 | Claude Sonnet 5.5 (High) | 65.93 | #11 (Claude Sonnet 5.5) |
| 6 | Claude Opus 5.5 (High) | 65.91 | #3 (Claude Opus 5.5) |
| 7 | Claude Opus 5.5 (Medium) | 65.66 | #3 (Claude Opus 5.5) |
| 8 | Claude Fable 5.1 | 65.46 | #9 |
| 9 | Claude Sonnet 5.5 (Medium) | 65.45 | #11 (Claude Sonnet 5.5) |
| 10 | Claude Fable 5.1 (Medium) | 65.32 | #9 (Claude Fable 5.1) |
| 11 | Claude Fable 5.1 (High) | 65.09 | #9 (Claude Fable 5.1) |
| 12 | Claude Fable 5.1 (xHigh) | 65.06 | #9 (Claude Fable 5.1) |
| 13 | Claude Opus 5.5 (Low) | 64.92 | #3 (Claude Opus 5.5) |
| 14 | Claude Sonnet 5.5 (Low) | 64.54 | #11 (Claude Sonnet 5.5) |
| 15 | Claude Opus 5 (xHigh) | 64.45 | #12 (Claude Opus 5) |
No result here: #10 Muse Wonder Full.
Interactive version: theaggregate.ai/benchmark?slug=conceptual-reasoning-index-argument-evaluation-lmca · How It Works · Data refreshed daily, snapshot 2026-10-20.