Claim · reasoning

Claude Opus 4.6on Humanity's Last Exam

19.0 to 34.4 the range across every scoreable measurement we hold
15.4 points between the highest and the lowest
19.0 the number the board uses: the lower median, a real row with its own provenance
2 declared configurations, from 1 runner

All 2 scoreable measurements here come from ONE runner, so this is not a reconciliation and is not presented as one. What it shows is how far a single runner's number moves when the model is run differently.

Every measurement

2 rows. Best first. the board takes the LOWER MEDIAN of the scoreable measurements, which is a real row with its own interval and provenance rather than an interpolated average. a vendor self-report is shown beside the independent numbers and is never one of them; it cannot move a rank.

ScoreProvenanceConfigurationWho ran itWhere to check it
34.4 / 100
as published: 34.4%
INDEPENDENT
counts toward the ranking
effort max Humanity’s Last Exam (CAIS / Scale AI)
via Epoch AI
CC-BY-4.0
NO_URL2026-08-30
benchmark leaderboard
the leaderboard for this benchmark, not a link to this row
19.0 / 100
as published: 19.0%
INDEPENDENT
counts toward the ranking
not stated by the source Humanity’s Last Exam (CAIS / Scale AI)
via Epoch AI
CC-BY-4.0
NO_URL2026-08-30
benchmark leaderboard
the leaderboard for this benchmark, not a link to this row
← The Forge Rankings

Snapshot 2026-08-30-62e4e85f043b, manifest dc46131315046f1e, as of 2026-08-30. where only one party has measured a model on a benchmark, this page says so rather than presenting a single number as a reconciliation.