Pre-LLM NLP predicts substance behind de-identified psychedelic trip reports far above chance

Josikinz · x · 2026-10-03

Josikinz reports that a semantic model built with old-school pre-LLM NLP predicted the substance behind de-identified psychedelic trip reports an order of magnitude better than random chance. Misclassifications were also non-random: subjectively similar drugs such as MDA were commonly mistaken for MDMA.

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