{"version":1,"type":"story","url":"https://digestai.news/story/chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher","json":"https://digestai.news/story/chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher.json","markdown":"https://digestai.news/story/chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher.md","slug":"chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher","headline":"ChatGPT-6 Astra decodes 108-year-old WWI German cipher","summary":"A developer known as Prinz claims to have used ChatGPT-6 Astra to break a 108‑year‑old World War I German radio message that was listed among 50 unsolved ciphers on Scienceblogs.de. The cipher, identified as using the ADFGVX method, was solved by feeding the keyword “TRUPPENVERSCHIEBUNG” to the model, which produced a German plaintext that translates to an alert about an English cruiser arriving at Sevastopol and an Allied squadron arriving on the 26th.\n\nPrinz checked the decoded dates against historical naval logs and found that the cruiser arrival matched the British cruiser HMS Canterbury’s docking in Sevastopol on 24 November 1918, while the squadron date aligned with the recorded arrival on 26 November. The developer hypothesizes that earlier attempts failed because researchers assumed the keyword was only used after 9 December 1918, a month later than the message’s transmission on 29 November. The episode is presented as a showcase of Astra’s flexible problem‑solving abilities.","keyPoints":["Developer Prinz used ChatGPT-6 Astra to break a 108‑year‑old ADFGVX cipher.","Decoded message reports an English cruiser arriving at Sevastopol on 24 Nov 1918, matching HMS Canterbury logs.","Astra solved the cipher with the keyword “TRUPPENVERSCHIEBUNG”, previously thought unused until Dec 9 1918."],"whyItMatters":"Shows large language models can tackle complex historical cryptanalysis, expanding AI’s utility beyond conventional text tasks.","category":{"slug":"models","name":"Generative AI & Models","url":"https://digestai.news/category/models"},"entities":{"companies":[],"models":["ChatGPT-6 Astra"],"people":["Prinz","Mark Tyson"]},"firstPublishedAt":"2026-09-19T15:02:02Z","updatedAt":"2026-09-19T15:02:02Z","sourceCount":1,"hasPrimarySource":false,"sources":[{"outlet":"Tom's Hardware","title":"ChatGPT-6 Astra cracks 108-year-old unsolved WWI German code for the first time — radio message sharing enemy movement intelligence had evaded decoding, 1918 Crimean fleet warning verified against HMS Canterbury logs","url":"https://tomshardware.com/tech-industry/artificial-intelligence/chatgpt-6-astra-cracks-108-year-old-unsolved-wwi-german-code-for-the-first-time-radio-message-sharing-enemy-movement-intelligence-had-evaded-decoding-1918-crimean-fleet-warning-verified-against-hms-canterbury-logs","publishedAt":"2026-09-19T15:02:02Z","type":"press","primary":false,"lead":true}],"sourceNotes":null,"discussions":[],"thread":null,"cite":{"text":"Digest AI, \"ChatGPT-6 Astra decodes 108-year-old WWI German cipher\", 19 September 2026, https://digestai.news/story/chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher","publisher":"Digest AI","title":"ChatGPT-6 Astra decodes 108-year-old WWI German cipher","datePublished":"2026-09-19T15:02:02Z","url":"https://digestai.news/story/chatgpt-6-astra-decodes-108-year-old-wwi-german-cipher"},"generatedBy":"Written by Digest AI's editorial model from the linked sources; the sources are the record.","license":"Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse"}