@CompleteSkeptic, ChatGPT co-inventor Diogo Almeida, announces Jev after two years building a training method called RLCD. The launch claims 20–200x faster, 40–400x cheaper with free output tokens, and frontier composable intelligence optimized for decisions.

Diogo Almeida (@CompleteSkeptic) published this on 2026-09-15. @CompleteSkeptic, ChatGPT co-inventor Diogo Almeida, announces Jev after two years building a training method called RLCD. The launch claims 20–200x faster, 40–400x cheaper with free output tokens, and frontier composable intelligence optimized for decisions. After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? How Jev or TypeSafe is used, in the post's own words: “I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revo…” The post does not name a separate audience. It is for people reading what @CompleteSkeptic shows here (it includes media).