jiwidi/jiwo

Jev-like family of decision models built on top of Qwen3.5/3.8 you can train and run on your own

Repository for serving models from the Jeff family

An open-source, high-performance System One Model for one-pass typed decisions, with an embeddable C runtime and WebAssembly support.

A family of System One-style models fine-tuned from Qwen3.5, designed for one-pass typed decisions with calibrated probabilities.

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.

Jev-compatible API server for open decision models. Ollama for decision models: pull and serve 29 model families (Laya, pplx-decider, Clef, Winnow, coba...) locally or self-hosted behind /v1/systemone. The TypeSafe SDK works unchanged: set its base URL and pick an open model. CLI, desktop app, Docker, MCP server, public bench.

Native vLLM serving for Jev decision models

Turn any off-the-shelf LLM into a Jev -like decision layer

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