What it is
openjev scores pre-written options given a context using a local Gemma 3 4B model on Apple silicon via MLX. It provides a CLI, HTTP server, and a TypeSafe System One-compatible endpoint for ranking options.
How it uses Jev
Jev makes choice, score, and noul decisions. For each question, the state, instructions, and options are rendered to a prompt; option names, level numbers, or yes/no are scored as continuations in one prefix-shared batched pass. The resulting probabilities are returned in the answer fields.
Primitives:choicescorenoul
Technique worth stealing
Sharing one prefill across candidate continuations to score all options in a single padded forward pass.
Try it
make setup && make serve, then curl localhost:8000/score or /v1/systemone.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.79
- Shows a System One patternno0.29
- Handles uncertaintyno0.05
- Measuredno0.08
- Runnableyes0.79
- Worth recommendingunclear0.47
- Model replicayes0.96
- Problem scopescore on a 0–2 scale1.02
- About Jevyes0.95
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.