The author of Laya, an open-source decision model, claims to have developed a similar architecture to Jev, a model by TypeSafe AI, over a year ago. Laya is a non-autoregressive decision model that provides fast and calibrated probability predictions. It is designed to work like the human brain's System 1, making instant reflex decisions. Laya is available on Hugging Face and GitHub, and its performance is compared to Jev in the article.