Stephen Downes

Knowledge, Learning, Community

Simon Willison discusses the latest AI fad, Jev, also known as "System One" models. "I'm with Maggie Appleton," he writes, "I think 'decision models' is a better name for these." Is basically black box AI. "Jev is an interesting variant on the usual LLM format: it still accepts text inputs, but instead of text output it returns floating point numbers corresponding to categories, yes/no questions, ratings, and associated confidence scores." As Willison notes, "It's great for anything that can be expressed as a classification task—think spam detection, suggesting labels, prioritization and ranking." Ah, that describes (sadly) so much educational activity (people have been going gaga over it in LinkedIn).

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Stephen Downes Stephen Downes, Casselman, Canada
stephen@downes.ca

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Last Updated: Sept 24, 2026 09:16 a.m.

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