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OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005

738 points · 448 comments · sohkamyung

  1. podgorniy · · focus · HN ↗
    UPD2. I threw the original question to gemini3.8 in antigravity. LLM oneshoted it in about 45min. The experiement with Opus is still running with checks.

    The prompt was `Decrypt encrypted with enigma `ICRVSORMCCWQTATYEVFXDBZGGSNXWLPSYWZYTCBSWULRTBZCVGODVJUSLSOOMJQJZSXSEBZPEYMDNXJYTC``

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    UPD. Lol. I pasted non-cyphered text

    Qwen 3.7 max, gpt 5.6 sol, fable 5.1, gemini 3.8 flash decoded the message in one shot for me... There is nothing special about astra doing something here

    I blantly threw request to decode the messaage in qwen 3.7. Used via api with couple simple generic system prompts like "be concise", nothing special. Prompted as

    Decode

    ``` BTTE UM ANGABE DES MARSQWEGES X BEFINDE MIQ IN X ROSENOW ROSENOW X SOFORT FUNKANTWORT X WASCHBBSCH ```

    --- response (I trunkated the output to conclusion only)

    "BITTE UM ANGABE DES MARSCHWEGES. BEFINDE MICH IN ROSENOW. SOFORT FUNKANTWORT. [UNCLEAR/END]" Translation: "Please provide the marching route. I am located in Rosenow. Immediate radio response required. [Unclear]"

    ---

    1. HDThoreaun · · focus · HN ↗
      I really, really would like to know what you were thinking when you pasted that "ciphertext" into the LLMs
      1. podgorniy · · focus · HN ↗
        I wasn't :D
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