devwithjevOpen-Weight Jev-Inspired Decision Model
tev1 is an open-weight Jev-inspired decision model fine-tuned from Qwen3.5 4B.
Also filed under Agents & browsers
- Building a Harness with Jev
Building a Harness with Jev Learn all about Jev, a new System One model from TypeSafe AI, and how you can use it in your agent harness. Jev is up to 200x ...
- How To Build A Harness With Jev | A LangChain x TypeSafe Conversation
How To Build A Harness With Jev | A LangChain x TypeSafe Conversation Hear from Sydney Runkle, Product Manager, OSS at LangChain, Allie Laabs, Founding Developer Advocate at TypeSafe AI, and ...
- Jev-kit for Claude Code
Cadaverr’s Jev-kit integrates TypeSafe’s Jev model into Claude Code for tasks including tool-call guarding, sub-agent sizing, file search, and browser automation. Jev answers pick-one and yes/no questions in about 0.3s, according to the author.
- Jev Browser Automation
jev-browser takes a task and URL, then uses Jev to choose one action per step from the page’s clickable, typeable, and selectable elements. It scores whether the goal is met or the run is stuck.