AI news story

Claude Cracked an 87-Year-Old Conjecture — I Verified the Counterexample in 0.1 Seconds

On Sunday evening, while most of the world was watching the World Cup final, a mathematician at Anthropic posted three polyno…

  • LLMs
  • Source: Towards AI
  • Published: 2026-07-23

Editor's take

Anthropic's Claude 3 Opus model has demonstrated an ability to solve a complex mathematical conjecture, the Hadwiger-Nelson problem, by providing a counterexample that disproves a long-standing hypothesis.

This achievement signifies a notable step in AI’s capacity for abstract reasoning and formal verification, moving beyond pattern recognition to genuine problem-solving in specialized domains. The implications extend to academic research, potentially accelerating discovery in fields like mathematics and theoretical computer science, and signal a growing utility for advanced LLMs in scientific endeavors.

Future developments to monitor include whether Claude 3 Opus can consistently replicate such feats across different mathematical disciplines or if this represents a specific, albeit impressive, instance of emergent capability. The verification speed of 0.1 seconds, while impressive, also raises questions about the underlying computational processes and the potential for more efficient AI-driven mathematical exploration.