ChatGPT co-inventor launches Jev, claims 20x faster and 40x cheaper

multiply_matrix · x · 2026-09-18

An account claiming to be a ChatGPT co-inventor unveiled the result of two years in stealth: a new training method (RLCD) and a new frontier model, Jev, claiming 20-200x faster, 40-400x cheaper (with free output tokens), optimized for composable decision intelligence.

Researcher Andrew Ratner's reshares highlight another angle: the comeback of discriminative/predictive models — he has long argued that in settings like closed-schema classification, classical ML formulations beat generative chat on accuracy, speed, and typing.

Related event: Ex-ChatGPT team launches Jev, a decision-only model claiming 20-200x speed at a fraction of the cost(63 posts)→

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