Models/press release/2026-09-15

AI models GPT-6 Astra and Opus 5 crack long-unsolved Enigma messages

OpenAI's GPT-6 Astra, and in some accounts Anthropic's Claude Opus 5, reportedly decrypted several long-unsolved Enigma messages. These messages, some dating back to 1941, had resisted human cryptographers for decades. The achievement is being framed by some outlets as the AI models passing "Turing's other test," a reference to Alan Turing's work on cracking Enigma during WWII. While widely reported across multiple tech and general news outlets, the primary source for these claims appears to be the respective AI companies. The specific details regarding the age and number of messages cracked vary slightly across reports.

6 articles from 6 outlets covered this story. Their coverage differs on 3 points. The underlying claim is sourced from a press release.

What do all outlets agree on?

6 outlets covered “AI models GPT-6 Astra and Opus 5 crack long-unsolved Enigma messages”. All of them report the following:

  • OpenAI's GPT-6 Astra decrypted Enigma messages
  • The Enigma messages had resisted solution for a long time

Did outlets disagree about this?

Yes. Coverage of “AI models GPT-6 Astra and Opus 5 crack long-unsolved Enigma messages” differs on 3 points. Each account below is how a different outlet described the same event:

Which AI models were involved in cracking the Enigma messages

Hacker News, futurecdn.net, and one Yahoo Tech article state only GPT-6 Astra; other Yahoo Tech, TechCrunch AI, Notebookcheck, and konsulteer.com state both GPT-6 Astra and Claude Opus 5

The specific age or origin of the Enigma messages

Hacker News mentions a message unsolved since 2005; Notebookcheck refers to messages resisting researchers for decades; futurecdn.net and Yahoo Tech specify an 85-year-old 1941 message

The significance of the achievement

Yahoo Tech and TechCrunch AI frame it as passing 'Turing's other test'; other outlets describe it as cracking long-unsolved messages

Which figures do outlets report differently?

1 figure in this story is reported with conflicting values:

Enigma message age/unsolved durationsince 2005 vs decades vs 85-year-old 1941

Which outlets covered this?

All 6 articles found on this story, grouped by the stance of the piece. Every link goes to the original publisher.

What related stories are there?

Which companies does this involve?

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