ProteinGym Hard (Anthropic) — leaderboard
Metric: Rank Correlation (%). Source: www-cdn.anthropic.com. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos Preview | 43.1 |
| 2 | Claude Opus 4.8 | 39.6 |
| 3 | Claude Opus 4.7 | 37.7 |
| 4 | Claude Sonnet 4.6 | 35.4 |
Interactive version: theaggregate.ai/benchmark?slug=proteingym-hard-anthropic · How the rankings work · Data refreshed daily, snapshot 2026-07-22.