Recently, a team of developers successfully decrypted a German Wehrmacht radio ciphertext from 1941, labeled "MVUEH," which had baffled cryptographers for more than eight decades, by leveraging OpenAI's GPT-6 Astra model. Guided by the recurring place name "Rosenow" found in decrypted telegrams from the same era, the researchers harnessed their knowledge of the Enigma machine's mechanics to reverse-engineer critical parameters. This approach enabled them to decode complete German sentences brimming with military directives. The authenticity of their findings was corroborated by spelling inconsistencies and archival templates present in the text.

The "Extra High" iteration of GPT-6 Astra was instrumental in the decryption endeavor, performing a multitude of functions, including archival retrieval and the creation of simulation programs. The team accomplished the decryption through a collaborative, agent-based division of labor. At present, the project has made resources such as its code repository accessible to the public, facilitating third-party replication efforts. However, independent verification by cryptography specialists is still necessary to ascertain the telegram's historical significance. This breakthrough not only builds upon prior investigations into the Enigma machine but also highlights the technological evolution in cryptography, marking a transition from manual decryption techniques to the utilization of AI.