Organic Chemistry V2 (Mythos 5.1 System Card): leaderboard
Metric: Score (%). Source: www-cdn.anthropic.com. 6 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos 5.1 | 69.2 |
| 2 | Claude Opus 5 | 65.7 |
| 3 | Claude Mythos 5 | 64.3 |
| 4 | Gemini 3.1 Pro (Preview) | 45.9 |
| 5 | Claude Sonnet 5 | 43.7 |
| 6 | GPT-5.6 Sol | 43.2 |
Interactive version: theaggregate.ai/benchmark?slug=organic-chemistry-v2-mythos-5-1-system-card · How It Works · Data refreshed daily, snapshot 2026-09-19.