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Claude Fable 5.1 cracks 370-year-old cipher, solving historical cryptogram

By PulseAugur Editorial · [4 sources] ·

The AI model Claude Fable 5.1 has successfully deciphered the Cyphral Distich, a 370-year-old cipher that had previously stumped human cryptographers. The model took 44 minutes and processed 176,000 tokens to solve the puzzle. Claude Fable 5.1's approach involved recognizing that the key to the cipher was embedded within the text of Sir Thomas Urquhart's "Logopandecteision" itself, rather than an external key. This method also allowed the model to decipher a second, more complex cipher, the Cyphral Octastich, also created by Urquhart. AI

IMPACT Demonstrates AI's capability in solving complex, historical linguistic and cryptographic puzzles, potentially opening new avenues for historical research.

RANK_REASON AI model solves a long-standing historical cipher, demonstrating advanced pattern recognition and contextual understanding.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 4 sources. How we write summaries →

Claude Fable 5.1 cracks 370-year-old cipher, solving historical cryptogram

How we ranked this

Signal score
22 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Research
AI model solves a long-standing historical cipher, demonstrating advanced pattern recognition and contextual understanding.
Source corroboration
4 independent sources
Strong cross-source corroboration — multiple independent publishers covered this within the clustering window.
Topics
model release, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.
Coverage growth since scoring
+1 source(s) since last score
New sources have picked up this story since our last re-score. Score will update on the next scoring pass.

Full methodology in our editorial standards.

COVERAGE [4]

  1. HN — claude cli stories TIER_1 English(EN) · u1hcw9nx ·

    Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher

  2. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    AI Is Destroying the World Article URL: https:// gornak40.org/blog/ai-is-destro ying-the-world.html Comments URL: https:// news.ycombinator.com/item?id=4 968868

    AI Is Destroying the World Article URL: https:// gornak40.org/blog/ai-is-destro ying-the-world.html Comments URL: https:// news.ycombinator.com/item?id=4 9688681 Points: 5 # Comments: 0 https:// gornak40.org/blog/ai-is-destro ying-the-world.html # Tech # Technology # TechNews # A…

  3. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher Article URL: https://www. vals.ai/blogs/fable-solves-cyp hral-distich Comments URL: https://

    Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher Article URL: https://www. vals.ai/blogs/fable-solves-cyp hral-distich Comments URL: https:// news.ycombinator.com/item?id=4 9688695 Points: 25 # Comments: 0 https://www. vals.ai/blogs/fable-solves-cyp hral-distich…

    LINKS vals.ai/…/fable-solves-cyphral-distich
  4. Mastodon — mastodon.social TIER_1 English(EN) · CuratedHackerNews ·

    Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher https://www. vals.ai/blogs/fable-solves-cyp hral-distich # ai

    Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher https://www. vals.ai/blogs/fable-solves-cyp hral-distich # ai

    LINKS vals.ai/…/fable-solves-cyphral-distich

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