Not good at chatting, only good at making choices—why is the 'decision model' Jev going viral? Jev comes from @typesafeai. Its founder, Diogo Almeida, previously worked on RLHF and InstructGPT research at OpenAI. This time, he’s created a 'decision model' specifically designed for software use. Someone used it to analyze 724 ads from 37 brands. What was the ad’s opening? What offers were provided? What was the call-to-action? All processed in 40 seconds, with model costs around 9 cents. General large models are better at answering complex questions, but many software applications don’t need a full analysis—they just need to know: keep or delete, continue or stop, A or B. Jev’s value lies in these repetitive decisions.