GitHub · by Qi Li, Xinchao Wang
Jeva
A System One model built from first principles, with open weights.
Qi Li and Xinchao Wang at the National University of Singapore designed Jeva as a native System One model. Give it a state and typed questions, and it returns option probabilities, a yes/no probability or an expected rubric score. Reordering the options reorders their probabilities and nothing else. The 4B weights are on Hugging Face, with a paper and fine-tuning docs.
LiQiiiii/Jeva on GitHub
- Stars
- 76
- Forks
- 2
- Language
- Python
- Last push
- Oct 14, 2026
Repository created Oct 12, 2026. Counts read from the GitHub API on Oct 15, 2026, and they move daily — quote them with the date.
