A researcher used GPT-6 Astra to decipher a WWI German radio transmission from 1918, one of the 50 famous unsolved ciphers listed on a German science blog (prinz)

A researcher employed GPT-6 Astra to decode a 1918 German radio transmission, one of 50 historically unsolved ciphers listed on a German science blog. The breakthrough demonstrates the model’s capability to interpret early 20th-century encrypted communications. The decoded message adds a new piece to the century-old puzzle of World War I cryptography.