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GPT-6 Astra Solves a WWI German Radio Cipher

AI summary

GPT-6 Astra reportedly solved a World War I German radio cipher from a list of 50 unsolved ciphers on Scienceblogs.de. The cipher involved arranging the word "TRUPPENVERSCHIEBUNG" horizontally, with encrypted message letters written below in rows of 19. This method, demonstrated by calculating the positions of letters like 'T' and 'R' to reveal 'A' and 'V' respectively, allowed for the decryption of the message.

Why this one

This marks the first time GPT-6 Astra has publicly demonstrated its ability to solve a historical military cipher, unlike previous AI decryption attempts on simpler codes.

Time & source

Times shown in UTC

Display time zone: UTC

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IngestedOffset at this time: UTC+0Sep 19, 2026, 08:00 UTC

Ingested
Sep 19, 2026, 08:00
Source type
Unclassified
Breakout verdict
Basis
Running about 3.9× the median of this source's recent listed items
Metric comparison
237 vs median 61.5 (20 baseline samples)
Detected
09/19, 17:00

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Source·Hacker News·prinzai.com