# MysteryMechanism

As of Nov 3, 2026, MysteryMechanism (v1) is maintained by Vals AI. Metric accuracy (%). Ceiling 100. Saturation unknown. Contamination risk low.

Declared cadence: as Vals updates (checked daily). Catalog snapshots: 1, latest Oct 30, 2026.

## Categories

- Science: secondary, weight 0.35

## Top 5

- GPT-6 Astra: 53.153
- Claude Opus 5.5: 49.55
- Claude Sonnet 5.5: 49.099
- Claude Fable 5.1: 47.748
- GPT-6.1 Sol: 46.396

Source: https://www.vals.ai/benchmarks/mysterymechanism