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jevk5

JevK5: open-weight alternative to TypeSafe Jev. Typed decisions with probabilities in one forward pass; Apache-2.0 weights and code.

158 ★ on GitHub

What it is

JevK5 is an independent, Apache-2.0 open-source alternative to TypeSafe's Jev for typed decisions. Give it a state (a ticket, log, policy, or diff) and a yes/no, choice, or score question. It returns a probability for every option in one forward pass, with zero generated tokens. The weights run on your own GPU, and…

The homepage listed on the repository, huggingface.co, puts it like this: Text Generation model with 4B parameters. Download, explore files and run it on Hugging Face.

Getting started

From the README:

pip install "jevk5[fast] @ git+https://github.com/allebee/[email protected]"

Where the decision sits

jevk5 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, JevK5.

How active it is

Created 2026-09-22, last pushed 2026-09-28, 158 stars and 12 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.