Yinsongxu/LLM2Jev

A small open decision model: state + typed questions -> calibrated probabilities. A Jev / System One re-creation on Qwen3.5.

Turn any open model into a classifier/jev endpoint

Jev-compatible API endpoint based on open models (prefill-only)

The open, local take on Jev: typed decisions from an LLM, without generating a single token

Millisecond decisions, any domain: a 0.8B open "System 1" model that picks between your options with calibrated probabilities. One base, swappable LoRA adapters, on your own hardware.

Open decision models from 0.8B to 27B: a calibrated probability for every option in one pass, and a short thought only when unsure. Engine for vLLM, llama.cpp and MLX.

Jeeves – Reasoning improves Jev-like decision models

Turn any LLM into a Jev-style decision model: typed decisions, real probabilities, no training. (continue updating, welcome any issue and PR request)

Typed decisions from a frozen language model and a small physics engine: calibrated probabilities, conformal sets, 73k context, images.