# GPT-5.6 Sol reportedly disproves a 30-year-old statistics conjecture in 90 minutes after humans couldn't crack it

> Source: <https://the-decoder.com/gpt-5-6-sol-reportedly-disproves-a-30-year-old-statistics-conjecture-in-90-minutes-after-humans-couldnt-crack-it/>
> Published: 2026-07-15 17:35:12+00:00

A University of Pennsylvania statistics professor used OpenAI's GPT-5.6 Sol Pro to disprove a central open conjecture about the Benjamini-Hochberg method in roughly 90 minutes. The predecessor model, GPT-5.5, couldn't find a solution even after 20 hours. The answer combines known methods in a new way, keeping the bigger question alive: can AI produce genuinely new knowledge, or does it just recombine what it already learned?

The article [GPT-5.6 Sol reportedly disproves a 30-year-old statistics conjecture in 90 minutes after humans couldn't crack it](https://the-decoder.com/gpt-5-6-sol-reportedly-disproves-a-30-year-old-statistics-conjecture-in-90-minutes-after-humans-couldnt-crack-it/) appeared first on [The Decoder](https://the-decoder.com).