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system-one-open

Open replica of TypeSafe's Jev: typed calibrated decisions in one forward pass, on Gemma 4 E2B / Gemma 3 270M (Modal)

41 ★ on GitHub

What it is

State in, typed calibrated decisions out, one forward pass, no decoding. An open replica of TypeSafe's Jev built on Gemma 4 E2B (attention LoRA) and Gemma 3 270M, trained and served on Modal. MIT licensed.

Where the decision sits

system-one-open 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 2026-09-17, 41 stars and 7 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.