#Roteamento

Jev costs $0.042 per million tokens and is a closed API. Laya is Apache 2.0, runs offline on a GPU from 2018, and measures 7.8x faster at P50. A comparison using the numbers each side published, plus the prior-art fight that blew up on Hacker News two days after the launch.

A decision catalog with numbers, not adjectives: ten tasks that run on a frontier LLM today and fit Jev's three primitives. One million calls in each case costs $46,200 on the LLM and $523 on Jev. It has the payload for each case, the cascade pattern, how to measure the migration in shadow mode without labeling anything, and the four tasks where Jev is the wrong choice.

The agent decides on its own which flow to use, but nobody can explain why it picked the wrong one yesterday at 2 p.m. Deterministic router vs. LLM router, intent classification with a closed schema and evidence, an explicit fallback policy, trace attributes to audit the decision, and how to measure routing accuracy without hand-labeling ten thousand conversations.