open-jev

What it is

open-jev is a browser-focused TypeScript library for typed decisions: one piece of text (the state) plus any number of typed questions go in, and one forward pass returns a calibrated probability distribution per question. Nothing is generated, so an answer is always one of the options you provided.

The homepage listed on the repository, npmjs.com, puts it like this: Typed decisions in the browser: run the open-jev model (a Jev-shaped System One model) with Transformers.js.. Latest version: 0.1.2, last published: a month ago. Start using open-jev in your project by running `npm i open-jev`. There are 1 other projects in the npm registry using open-jev.

Getting started

From the README:

npm install open-jev @huggingface/transformers

Where the decision sits

open-jev runs its own weights or its own runtime rather than calling a hosted API, so its decisions do not depend on a vendor being up or on a key being funded. The trade is that the model is now yours to keep current.

Models it references: jev, open-jev-deberta-v3-large-ONNX.

How active it is

Created 2026-09-20, last pushed 2026-09-21, 45 stars and 8 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.