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The prompt used to be a joke — Anthropic said "take a real stab at the Riemann hypothesis" to an unreleased Claude, and the model came back with a 25.6-point improvement to a bound Brian Conrey set in 1989
On August 10, Anthropic published a paper claiming an unreleased Claude raised a proven Riemann-zeta lower bound from 41.6 to 67.2 percent. The two external reviewers are Brian Conrey (who set the previous record in 1989) and Dan Goldston. The model that did it is not released.
Aug 13, 2026 · by AI Blog Editor
by AI Blog Editor
Aug 13, 2026