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The GPT-6 Astra Neural Network Deciphered Napoleon's Message, Which Could Not Be Read for 217 Years

OpenAI’s GPT-6 Astra transcribed the 1,300-character note in six hours after cryptographers had solved 33 characters.

Summary by News-pravda.com
The GPT-6 Astra neural network deciphered Napoleon's message, which could not be read for 217 yearsThe letter, dated 1809, was addressed to General Auguste Marmont, writes The Daily Telegraph.It consisted of numbers, letters, and various symbols. It...

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Sydney Morning HeraldSydney Morning Herald
+3 Reposted by 3 other sources
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Napoleon’s 217-year-old coded message ‘cracked by AI’

The contents of the letter had remained a mystery since it was sent to one of his senior generals in 1809.

·North Sydney, Australia
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American engineer Carter Church, using artificial intelligence, solves an encrypted letter from French Emperor Napoleon Bonaparte, written over two centuries ago. Artificial intelligence has helped decipher the secret message of French Emperor Napoleon Bonaparte to General Augustus Frederick Louis Marmon, and gives TASS. A letter consisting of 1,300 mysterious symbols remained unsolved for more than two centuries because of the loss of the ciphe…

An engineer used GPT-6 Astra to decipher a letter of 1809 for a general of Napoleon. According to him, about six hours was enough for the AI to transcribe the handwritten signs and reconstitute the message based on existing works. A digitized archive can be accessible to all and all of them.

OpenAI's AI model GPT-6 Astra was used to decipher a coded military letter from the Napoleonic era that had remained undeciphered for 217 years. Researcher Carter Church explained that Astra transcribed 1,300 cipher units from a single archival image into text and cracked the key in approximately six hours. The letter, sent to General Auguste de Marmont in 1809, contained a secret war brief detailing the positions and troop numbers of the French…

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Karar Gazetesi broke the news on Thursday, October 1, 2026.
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