Evidence before opinion

Each ranking page states its own metric, scope, source and sorting method. Ordinal chart positions are shown as positions, never invented audience or sales scores. Refresh schedules differ by source; failed checks retain previous verified data with a warning. The AI ranking orders Epoch AI’s published ECI scores in descending order. It is a third-party composite index: RankMondo does not calculate a new capability score. Exact ties share rank; absent scores are excluded, never filled. Each import validates identities, numeric ranges, uncertainty intervals and coverage before an atomic publication. Unexpected schema changes, losses above 15% and score revisions above 25 points require review. Immutable snapshots record the method version, raw archive hash and observation time. Check time, first-observed time, model release date and source publication time are separate. Source publication time is currently unavailable. Historical changes start at our first saved snapshot. Summaries are deterministic counts, not AI-generated explanations. Read the source method at https://epoch.ai/eci .