Drex vs Jev: make the cheap decision before calling the big model
The author separates the routing layer: a small decision model ranks actions and routes simple branches in 12ms, escalating only when deeper reasoning is needed; Drex scores 51.73 on the decision index versus 51.67 for Jev 1.13.0 while running 3x faster.
Drex vs Jev is one of the first times a tiny decision model actually made the routing layer feel worth building. in my workflow, the big win is making the cheap decision before the expensive model starts thinking. less wasted calls, faster retries, tighter loops. → rank actions before spending tokens → route simple branches in 12ms → keep 32k context for state + tool options → escalate only when deeper reasoning is needed drex scored 51.73 on the decision index vs 51.67 for jev 1.13.0, while running 3x faster. built by http://Nace.AI, it’s basically a small model for routing, tool selection and reranking instead of another chatbot. i’d use drex for decisions and heavier models for execution. first 10,000 devs also get 250M tokens free.