HLE-Diamond leaderboard

HLE-Diamond (Humanity's Last Exam Diamond) is a knowledge benchmark published by Introducing HLE-Diamond. Accuracy on the 1,000-question HLE-Diamond set without tools, using the benchmark owner's high-reasoning evaluation. Its evaluation set is described by the source as 1,000 expert questions: 500 reasoning and 500 knowledge. The source rates its difficulty as frontier expert knowledge and reasoning.

Each model's result is published by Introducing HLE-Diamond as accuracy without tools, reasoning high. ModelScale prints that value to 1 decimal place, exactly as published, and never converts or rescales it. This page ranks the 0 models that carry a published value, highest value first; a model the source never scored is left out rather than ranked at zero. The source does not state whether a higher value is the better result, so neither does this page.