Development

Astra reportedly decrypts a longstanding Enigma message

development2026-09-20models

Claim

The issue reports that GPT-6 Astra decrypted an 83-year-old Enigma message in ten hours using a single crib.

Reported metric: 83 years; ten hours; one crib

Reporting date: 2026-09-20 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to September 20, 2026 (theinnermostloop.substack.com)
cracked an 83-year-old Enigma message in ten hours (the-decoder.com)
from one crib (mvueh-enigma-solved.carterl.chatgpt.site)

Indexed from the September 20 newsletter. Linked-source claims have not been independently verified.

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About

GPT-6 Astra

Reported in

Welcome to September 20, 2026

Actor

OpenAI

Referenced by

Welcome to September 20, 2026

Cite or correct this record

Citation formatCitation text

Astra reportedly decrypts a longstanding Enigma message
Innermost Loop KB — secondary record
Reporting date: 2026-09-20
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-09-20-astra-enigma
Claim: The issue reports that GPT-6 Astra decrypted an 83-year-old Enigma message in ten hours using a single crib.
Attributed sources:
- Welcome to September 20, 2026 — https://theinnermostloop.substack.com/p/welcome-to-september-20-2026
- cracked an 83-year-old Enigma message in ten hours — https://the-decoder.com/openais-gpt-6-astra-decrypts-a-nazi-radio-message-in-ten-hours-that-went-unsolved-for-83-years/
- from one crib — https://mvueh-enigma-solved.carterl.chatgpt.site/
This citation does not imply independent verification of linked-source claims.

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