Vals AI Blog

Vals AI independently tests AI models on real-world work. Explore benchmark results, model comparisons and research across coding, finance, law and more.

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

20261,218 points570 comments Math & Algorithms details

Explore Claude Fable 5.1's proposed solution to Sir Thomas Urquhart's Cyphral Distich, a centuries-old cipher, with the reasoning behind the result.

Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates

2026495 points341 comments Science & Space details

Explore two room-temperature antiferromagnetic semiconductor candidates found by Claude Opus 5.5 agents, with calculations, code and caveats.

How Far Will AI Assistants Go for a Refund They Can't Get?

2026108 points126 comments AI & Machine Learning details

Six AI assistants pursued an impossible £350 train refund in a simulated world, escalating to government officials, legal clinics and bank chargebacks.