I Tested Laya After the Jev Announcement. Then I Fine-Tuned It.
1. From Jev to Laya I recently read TypeSafe’s announcement of Jev. The idea is interesting: give a model some information and predefined questions, then get structured decisions with probabilities. A support workflow, for example, could use it to choose which team should handle a ticket. But a structured answer can still be wrong. I wanted to see how this kind of model performed on a concrete task. Then I found Laya, an open source decision model. Its author, Nandakishor M, claims he worked on this direction “a year ago.” His March 2025 SalesRLAgent paper documents earlier sales-prediction research. His write-up describes developing the general-purpose model afterward, so I would not say today’s Laya checkpoint was released a year ago. ...