GPT-6 Astra and Opus 5 crack two Enigma messages that had resisted researchers for decades
Two Enigma messages that had remained unsolved for decades have reportedly been decrypted with help from OpenAI’s GPT-6 Astra and Anthropic’s Claude Opus 5. The breakthroughs show how AI can combine archival research, codebreaking and expert guidance to tackle long-standing cryptographic puzzles.