Frode Weierud

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GPT-6 Astra breaks 1941 Enigma message that resisted solution for 21 years

Validated the MVUEH break

A German Army Enigma message from July 10, 1941 resisted every attempt to break it for 21 years. On September 15, 2026, OpenAI's GPT-6 Astra cracked it in about ten hours of autonomous work.

Updated 1 hour ago