Ex-ChatGPT co-inventor launches Jev, claims 20-200x faster and 40-400x cheaper

pranavmarla · x · 2026-09-17

A self-described ChatGPT co-inventor launched Jev, a frontier model trained with a new method called RLCD, claiming 20-200x faster inference, 40-400x lower cost (free output tokens), and decision-optimized composable intelligence. A Stanford CS PhD benchmarked Jev/Typesafe on HiringCafe (2.5M MAU consumer app) scoring resume-to-job-description relevance, publishing a detailed thread.

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