GPT-6 Astra Solves a WWI German Radio Cipher
The GPT-6 Astra AI model successfully decoded a long-unsolved World War I German radio message encrypted with the ADFGVX cipher. The model utilized historical cryptographic principles to identify the correct key and translate the message.
Why it matters
This demonstrates the advanced pattern recognition and historical analysis capabilities of modern large language models in solving complex, non-standard problems.
Scienceblogs.de, a German science blogging portal, includes a relatively famous list of 50 unsolved ciphers , which range from cryptograms published by serial killers to the famous Voynich manuscript .
Among these ciphers is a set of German radio messages from World War I that were encoded using the ADFGVX method.
This method is illustrated by the following example using the word “HOUSE” as the key:
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