OpenAI's GPT-6 Astra decrypts a Nazi radio message in ten hours that went unsolved for 83 years

A developer reports using GPT-6 Astra to solve an 83-year-old encrypted Wehrmacht radio message in ten hours. The decrypted text identifies an individual soldier asking about his march route during the Second World War. While this demonstration highlights the potential for large language models to assist in historical data analysis and cryptanalysis, the finding awaits formal independent verification.