ProteinGym Hard

Hard ProteinGym subset reported in Anthropic's Claude Opus 4.8 system card.

4rows
scoreprimary metric
2026-05-28sampled

Metadata

Metrics

Score

Latest Results

Provider-published system-card benchmark scores parsed from Anthropic's Claude Opus 4.8 capability evaluation tables. Rows are marked self-reported and should be interpreted as source claims unless independently reproduced.

Rank Subject Score Model Match Provenance Sampled
1 Claude Mythos Preview 43.1% Claude Mythos Preview
anthropic-claude-mythos-preview
Self-reported 2026-05-28
2 Claude Opus 4.8 39.6% Claude Opus 4.8
anthropic-claude-opus-4.8
Self-reported 2026-05-28
3 Claude Opus 4.7 37.7% Claude Opus 4.7
anthropic-claude-opus-4.7
Self-reported 2026-05-28
4 Claude Sonnet 4.6 35.4% Claude Sonnet 4.6
anthropic-claude-sonnet-4.6
Self-reported 2026-05-28