ChatGPT co-inventor launches Jev: up to 200x faster, 400x cheaper decision-optimized model

soumitrashukla9 · x · 2026-09-16

Diogo Almeida, who says he co-invented ChatGPT, unveils Jev, a new frontier model trained with RLCD, a method he developed over two years in stealth. Jev targets composable intelligence optimized for decisions rather than free-form generation: claimed 20-200x faster, 40-400x cheaper with free output tokens. He frames it as the shortest path to an AI-based economic revolution.

Related event: Stealth startup TypeSafe unveils decision model Jev and RLCD training method(17 posts)→

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