Former ChatGPT Inventor Launches Jev: Decision-Making AI That Runs 40-200x Faster Than Language Models

TypeSafe AI has released Jev, a fundamentally different class of AI model that processes decisions in parallel rather than generating text one token at a time, with developers already building real-time voice-control applications that execute Mac commands before users finish speaking. The model, announced September 15, 2026, was created by Diogo Almeida, an OpenAI researcher who co-invented reinforcement learning from human feedback (RLHF) used to train ChatGPT.