jev-codex-router
Per-turn model & reasoning routing for Codex, driven by Jev (TypeSafe System One): picks the model, thinking depth and speed mode for every turn.
275 ★ on GitHub
What it is
Jev chooses a model and thinking effort together for each model call, including continuations after tools. Every route uses standard speed. The objective is sufficient capability for the next decision with no unnecessary quota consumption.
Getting started
From the README:
echo 'TYPESAFE_API_KEY=your-key' >> ~/.hermes/.env # default env fileWhere the decision sits
jev-codex-router calls the hosted decision API rather than running its own weights. That keeps the project small and means its behaviour moves whenever the vendor ships a new model version. It also means an API key and a network round trip sit in the path of every decision.
Models it references: Jev.
How active it is
Created 2026-09-17, last pushed 2026-09-22, 275 stars and 51 forks when we read it on 2026-11-02. Everything in this category is weeks old at most, so a stale push date means something different here than it would on a mature project. Check the repository before you depend on it.
Find out what your data actually supports
We turn your historical decisions into a frozen test set, then tell you which model, which threshold, and how much of it you can safely automate.