ChatGPT co-inventor launches Jev, a decision-optimized model claiming 20-200x speed and 40-400x cost gains
soumitrashukla9 · x · 2026-09-21
CompleteSkeptic, who claims to be a ChatGPT co-inventor, spent two years in stealth building RLCD training and Jev, a new frontier model optimized for composable decision intelligence. Instead of asking an LLM to "act like a consumer" and parsing text, Jev treats the model directly as a choice function: context → distribution over decisions. Claims: 20-200x faster, 40-400x cheaper (output tokens free). Economists see it as a potentially powerful primitive for social/economic simulation.
Related event: Ex-OpenAI researcher launches decision model Jev with bold speed claims(36 posts)→
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