Stealth startup launches Jev, claiming a frontier model 20-200x faster and 40-400x cheaper

hardimanjames · x · 2026-09-18

A founder describing himself as a ChatGPT co-inventor says he spent two years in stealth on a new training method (RLCD) and is launching Jev, a frontier model optimized for decisions, claiming 20-200x speed and 40-400x cost improvements with free output tokens. All figures are unverified founder claims.

Related event: Self-Proclaimed ChatGPT Co-Inventor Launches Decision-Only Model Jev(7 posts)→

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