ArxivMath (Fable/Mythos): leaderboard
Metric: Score (%). Source: www-cdn.anthropic.com. 5 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos 5 | 78.5 |
| 2 | Claude Opus 4.8 | 71.82 |
| 3 | GPT-5.5 | 71.5 |
| 4 | Claude Mythos Preview | 68.7 |
| 5 | Gemini 3.1 Pro (Preview) | 64.8 |
Interactive version: theaggregate.ai/benchmark?slug=arxivmath-fable-mythos · How It Works · Data refreshed daily, snapshot 2026-09-05.