Claude Sonnet 4

Index with 95% interval. Grey band: range of all other systems. Dark tick: their median.

Each score combines these three parts, each from 0 to 1. Red tick: random answers.

OpinionsQA, Althing persona. Band: ±1 standard deviation across repeat runs.

SubPOP, Althing persona, temperature 0.85.

Gap between scores on public questions and on the private answer key. Above 0.05 is flagged for review.

The published runs behind these numbers.