User repository on GitHub
OpenDecision is an open-source semantic decision engine like typesafe's jev.
- GitHub stars
- 57
- Forks
- 3
- Primary language
- Python
- License
- apache-2.0
- Last pushed
- Updated Sep 2026
Repo stats from the GitHub API, cached Sep 2026.
CommunityModels & Reimplementations
OpenDecision
An Apache-2.0 decision engine with a TypeSafe-compatible endpoint, document answers with source passages, and a ViZDoom demo that picks actions from structured game state.
- Category
- Models & Reimplementations
- Format
- —
- Published by
- Community
- Author
- deepanwadhwa
- Added
- 2026-09-28
- Last verified
- 2026-09-28
Highlights
- Question types are Choice, Score, Noul, and Relation: supports, contradicts, unknown, or conflicted.
- A TypeSafe SDK compatible endpoint is part of the API surface, alongside a Python API and a FastAPI server.
- The Doom demo reads health, ammo, kills, positions, and recent damage. The recordings are fixed-seed, and no win rate is measured.
- The document API splits long documents and returns the passages it used. A GDPR retrieval set answers 9 of 10 objective questions.
Quickstart
bash
opendecision serveWatch out
Apache-2.0. The README calls it a developer preview and says to treat scores as uncalibrated until you fit thresholds on your own data. Not affiliated with TypeSafe.
Reactions & coverage
Posts, threads, and videos about this entry from around the web.
Hacker News: Show HN: OpenDecision, a local decision model with a Doom demo.
dwa35926 pointsShow HN: OpenDecision – a 400M zero-shot model makes local decisions, plays DoomRead the thread on Hacker NewsHacker News: Jev implemented in 25 lines of Python
bashbjorn400 points · 128 commentsJev in 25 Lines of PythonRead the thread on Hacker NewsHacker News: Show HN: a mouse colony where each next move is Jev or a fixed rule.
1 pointShow HN: Jev-mice – mouse colony simulation using Jev and deterministic engineRead the thread on Hacker NewsHacker News: Kev: a tiny Jev-like family built on Qwen3.5
tosh458 points · 199 commentsKev: Tiny Jev-like family of decision models built on top of Qwen3.5Read the thread on Hacker NewsMore like this
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