GPT-6 Astra cracks 83-year-old Nazi radio message

carter leffen, a product development coach at bloomberg lp, utilized openai's gpt-6 astra to decrypt an 82-character radio message from 1941 that had remained unsolved for 83 years. the message, encrypted with an enigma machine, was from a german soldier requesting marching orders. gpt-6 astra, specifically the 'gpt-6 astra extra high' variant, worked on the problem for about ten hours, handling tasks such as searching historical archives, building an enigma simulator, writing cryptanalysis code, and cross-checking results. the breakthrough came from using a known town name 'rosenow' as a search term and exploiting a well-known enigma weakness. this achievement showcases the potential of ai in cryptanalysis and historical research, and the code, search data, and a working 3d enigma simulator are available for download for further evaluation.