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RiemannBench (Anthropic corrected grading, with tools)

Math · 2026-07-24

Anthropic's July 2026 evaluation of the 25 RiemannBench problems with tools at maximum reasoning effort, using corrected reference answers and grading. Reported accuracy averages four attempts per problem. Equivalence with Surge's original unrestricted-agent grading has not been established; this measurement remains diagnostic.

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