---
title: "AI reportedly cracks 83-year-old unsolved Nazi Enigma message"
url: https://www.parallelquant.com/posts/ai-reportedly-cracks-83-year-old-unsolved-nazi-enigma-message-cef39c
source_name: "The Decoder"
source_url: https://the-decoder.com/openais-gpt-6-astra-decrypts-a-nazi-radio-message-in-ten-hours-that-went-unsolved-for-83-years/
published: 2026-09-17T09:45:55.000Z
topics: ["llms", "research"]
publisher: "Parallel Quant"
---

# AI reportedly cracks 83-year-old unsolved Nazi Enigma message

*2026-09-17 · Source: [The Decoder](https://the-decoder.com/openais-gpt-6-astra-decrypts-a-nazi-radio-message-in-ten-hours-that-went-unsolved-for-83-years/)*

A Bloomberg developer says OpenAI's GPT-6 Astra decrypted an 82-character 1941 Wehrmacht radio message in about ten hours, a message that had gone unsolved for 83 years. The message reportedly contains a soldier asking about his march route, though the solution still needs independent review.

**Why it matters:** If verified, this is a striking demonstration of how far AI-assisted cryptanalysis has advanced on a problem that resisted dedicated human codebreakers for decades. Concrete, checkable results like this give more signal about real model capability than benchmark scores do.

**Topics:** llms, research

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Read the original: https://the-decoder.com/openais-gpt-6-astra-decrypts-a-nazi-radio-message-in-ten-hours-that-went-unsolved-for-83-years/
Canonical: https://www.parallelquant.com/posts/ai-reportedly-cracks-83-year-old-unsolved-nazi-enigma-message-cef39c
Published by Parallel Quant — https://www.parallelquant.com