system-one-gemma
Open-source Jev-style System One decision model. Gemma 3 270M with a scoring head — fast, calibrated decisions in a single forward pass. No text generation. Inspired by TypeSafe.ai's Jev.
- GitHub stars
- 4 as of 2026-09-22
- Forks
- 1
- Language
- Python
- License
- Check upstream
- Created
- 2026-09-17
- Last updated on GitHub
- 2026-09-18
- Added to AionEdge
- 2026-09-19

What Jev does in system-one-gemma
The project describes itself this way: Open-source Jev-style System One decision model. Gemma 3 270M with a scoring head — fast, calibrated decisions in a single forward pass. No text generation. Inspired by TypeSafe.ai's Jev. In the Benchmarks & research category, Jev typically decides labels and probabilities on fixed test sets, so accuracy, calibration and latency can be measured.
Verification
Verified. We confirmed this repository and its Jev relevance through the GitHub API and the source lists below. A specific file link has not been recorded yet.
Topics
- calibration
- decision-model
- gemma
- jev
- lora
- machine-learning
- scoring-model
- system-one
- transformers
- typesafe-ai
How Benchmarks & research projects use Jev
Benchmarks and research projects test Jev rather than just use it. They compare it with language models and other classifiers, check whether its probabilities are well calibrated, and explore where the decision-model approach breaks down.
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