Claude Solves 668-Dimension Hadamard Matrix Problem

A team led by Anthropic researchers, including three humans and Claude, successfully discovered a 668-dimension Hadamard matrix. This breakthrough solves a previously open problem in the FrontierMath benchmark and resolves all remaining open orders under 2000.

2026-08-12 ~ 2026-08-13 · 4 related posts

• Claude Solves FrontierMath Open Problem: Finds Hadamard Matrix of Order 668 — inductionheads · 2026-08-12
• Claude Solves Long-Standing Hadamard Order 668 Case and All Open Orders Under 2000 — haider1 · 2026-08-12
• AI Solves the Hadamard Matrix of Order 668 Problem — deedydas · 2026-08-13

1 near-duplicate retellings: Yamapama