Article · by Kevin Dubois

Routing agents with Jev and Laya in LangChain4j

System One decisions inside a Quarkus workflow.

Kevin Dubois

@kevindubois

With all this hype around #Jev and open source derivatives like #Laya I wanted to see how these kinds of decision models would work in Agentic Workflows with #LangChain4j. (tl;dr it's pretty intuitive!) kevindubois.com/2026/09/23/rou…

Sep 24, 2026 · 2 likesOpen on X

Kevin Dubois tried Jev and the open-weight Laya as decision models inside agentic workflows with LangChain4j on Quarkus, and wrote up how intuitive the routing felt.

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