ChatGPT-6 Astra cracks 108-year-old unsolved WWI German code for the first time — radio message sharing enemy movement intelligence had evaded decoding, 1918 Crimean fleet warning verified against HMS Canterbury logs

https://www.tomshardware.com/author/mark-tyson· Sep 19, 2026 · 3:02 PM UTC ·11 min read · 0 reactions · 0 comments · 12 views

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TL;DR · WeSearch summary

A developer named Prinz used the GPT-6 Astra AI model to successfully decipher a 108-year-old encrypted German radio message from World War I. The decoded text revealed intelligence regarding the arrival of an English cruiser and an Allied squadron near the Crimean Peninsula in November 1918. The accuracy of the decoding was verified by cross-referencing the message details with historical logs from the British cruiser HMS Canterbury.

Key facts

▪The encrypted message was selected from a list of 50 unsolved ciphers maintained by the German science portal Scienceblogs.de.
▪GPT-6 Astra solved the ADFGVX cipher using the keyword 'TRUPPENVERSCHIEBUNG' to reveal the location and timing of Allied naval movements.
▪Historical records confirmed the decoded information by matching the cruiser's arrival with HMS Canterbury's log entry for November 24, 1918.
▪The AI hypothesized that previous decoding attempts failed because researchers incorrectly assumed the specific keyword was not in use until December 9, 1918.

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Publication time	Sat, 19 Sep 2026 15:02:02 +0000
Retrieval time	2026-09-19T15:13:46.314Z
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Tech Industry Artificial Intelligence ChatGPT-6 Astra cracks 108-year-old unsolved WWI German code for the first time — radio message sharing enemy movement intelligence had evaded decoding, 1918 Crimean fleet warning verified against HMS Canterbury logs News By Mark Tyson Published 19 September 2026 The decoded and message alerts German military forces of the movements of an English cruiser and an Allied squadron near Crimea. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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