Resource / directory
A curated list of public projects, integrations, and discussions built on Jev — TypeSafe AI's System One model for typed decisions.
Details →★ 1,556
awesome-open-system-one
Curated list of the open System One ecosystem: open models, independent benchmarks, calibration and constrained-decoding tooling.
Project facts
- Relationship to Jev
- Local alternative
- Evidence
- Documented
- Language
- Not reported
- License
- Not reported; check the repository
- Origin
- Original repository
- Repository status
- Not archived
- Created
- 2026-09-20
- GitHub stars
- 4
- Evidence checked
- 2026-09-24T08:40:10.508Z
- Metadata checked
- 2026-09-24T08:40:10.508Z
- Check status
- current
Stars measure the whole repository, including work unrelated to Jev.
Evidence and scope
Documented records the linked documentation or source. JevHunt has not independently run or benchmarked this project.
"System One models" (a term from TypeSafe's Jev launch, after Kahneman's System 1) make fast, typed, calibrated decisions that software consumes directly, classify, route, score, gate, instead of generating text you parse and hope about. Jev itself is closed, hosted, and waitlisted. This list tracks the **open** side: reproductions you can run, independent evaluations you can check, and the underlying techniques (calibrated confidence, constrained decoding, conformal abstention) that predate the
Evidence commit: d695bc111e3933d73a180518eb953c4dbe4fc821
Discovered through: github-search.
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