Independent and unofficial
Jev is TypeSafe AI's System One model: you send it state and typed questions, and it returns choices, scores, and probabilities instead of text. MrJev collects the guides, prices, and 72 community projects you need to build with it.
How a model that returns typed decisions instead of text works, and where it falls short.
Get early access, install the SDK, and make your first Choice, Score, and Noul call.
Compare what your decision volume costs on Jev versus Claude and GPT models.
Five popular Jev projects, installed and tested, with what each sends where.
browser-use/jev-ultrafast
Fast browser agent from Browser Use. Jev decides each step and which element to act on; a small model is called only when text needs to be typed. The authors report a full Google Flights search in about 7.1 seconds.
tamaratran/fast-jev-compaction
Claude Code plugin that replaces the compaction summary with Jev decisions. Every tool call and result is scored; stale ones are dropped or truncated, and everything kept stays verbatim.
TheoLeeCJ/SemIf
Jev-style decisions from a frozen 4B model on a single RTX 3090, with a browser demo. Formerly OpenJev.
lahfir/agent-desktop
macOS desktop automation over accessibility trees. Since v0.9.2, its jev-desktop scripts let Jev choose which control to operate and which action to take.
jarrodwatts/jev-trader
Asks Jev buy or sell on every Monad block and places real post-only limit orders on the Kuru MON-USDC book. Not financial advice.
vinnylarouge/jevlike
Train a small model that scores a changing list of text options in one pass.
New Jev releases, pricing changes, and the best new projects, once a week. No spam; unsubscribe anytime.
Powered by Buttondown. See our privacy policy.