OpenAI's GPT-6 Astra has broken an Enigma message that had resisted solution since 2005. The message, sent by a German Army radio station in 1941, was cracked by the AI model without human intervention. The break is significant not only because of the message's resistance to solution, but also because of the AI's ability to discover and utilize relevant information from a variety of sources. The AI's approach and methods are still being analyzed and studied.