BioMysteryBench Verified - Human Difficult (Anthropic): leaderboard

Anthropic system-card run of BioMysteryBench Verified human-difficult tasks, testing hard biological mystery problem solving.

Metric: Score (%). Source: www-cdn.anthropic.com. Saturation forecast: Around 2029. 4 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.840#37
2Claude Mythos Preview29.6#4
3Claude Opus 4.724.7#49
4Claude Sonnet 4.619.1#90

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=biomysterybench-verified-human-difficult-anthropic · How It Works · Data refreshed daily, snapshot 2026-10-20.