chengyongru/fastjev

Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe.

Free open source alternative for Jev that supports text, documents and images and runs at ~2GB of ram on a CPU.

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

Blazing fast, self-hosted structured decisions for open models with a TypeSafe AI compatible API, written in Rust.

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.

Open-source System One decision engine. Typed choice / score / noul with calibrated probabilities. Self-host with Ollama or any OpenAI-compatible model. Apache-2.0.

The open-source System One decision model. Sub-15ms, non-autoregressive, local drop-in alternative to TypeSafe Jev.

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

Small decision models (jev style) for latency critical scenarios