Jev News records decision models

Jev News is a static site about models that return a choice, a score, or a yes/no from a fixed answer set. Jev, TypeSafe AI's System One model, is the one this site has followed longest. This site is not affiliated with TypeSafe AI.

What we publish

The standing pages are the catalog, the Jev pages, comparisons, and measurements. Articles rewrite public posts from X after the September 15, 2026 launch, plus the docs and repositories those posts cite. A demo or a waitlist note can sit in the archive. It does not lead the homepage.

How citations work

When reporting claims from X, the primary post is linked under the Sources section alongside referenced articles, code repositories, or documentation. Speed, pricing, and benchmark metrics are attributed to their original authors unless supported by independent lab evaluations.

This site's reading

Each article concludes with editorial notes: Verify checks claims against primary sources, Compare contextualizes findings against related implementations, and Terms defines key technical concepts.

Official product material lives at typesafe.ai and docs.typesafe.ai.

Desk pages

Decision models is the catalog of hosted calls and open checkpoints. Start is a short reading order. Method is the longer version of these rules. Timeline groups stories by the date on each article. Patterns collects recurring setups from the stories. Limits is TypeSafe's failure modes plus misses from later stories. Hallucination is the launch post's can't-hallucinate line beside the tables that score a wrong option. Jev Day 2026 is the October 14, 2026 release of jev-1.14.0, plus opt-in images, a Box type, and 262k context. Compare puts similar tests next to each other. Access lists public doors for calling Jev. Evals collects the measurements already in the stories. FAQ is short answers from the same material. People is who published them. Repos is the GitHub projects those stories cite. Terms is the glossary. Sources lists the URLs those stories cite. Privacy says what the public site records about a visit.