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decider
A family of System One-style models fine-tuned from Qwen3.5, designed for one-pass typed decisions with calibrated probabilities.
1.2k ★ on GitHub
What it is
Ten text games and Super Mario Bros, each move one typed decision over the legal actions; see decider/games/ and docs/HISTORY.md.
Getting started
From the README:
pip install decider-ai # or: git clone https://github.com/Mapika/decider && pip install -e ".[serve]"Where the decision sits
decider 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, decider-0.8b, decider-2b, decider-2b-vision, decider-35b-a3b, decider-35b-a3b-nvfp4.
How active it is
Created 2026-09-16, last pushed 2026-10-20, 1,170 stars and 53 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.