Learn how Jev makes decisions by running it, in an interactive playground with four real examples.
@dani_avila7A hands-on way to understand Jev. It walks through the three kinds of question Jev answers, yes-or-no, pick-one and score, and when to use each.
Four working examples show it in action: an email spam classifier, a buy-or-sell call on a stock, a guardrail for an agent's tool calls, and an inbox sorter. The live demo works with your own TypeSafe or Vercel AI Gateway key.
Test Jev against another AI judge on real questions, and vote before you see who answered.
Jev
TypeScriptRun the same batch of comments through Jev and another model side by side, and compare speed, cost and labels.
Jev
JavaScriptAn early open-source harness that uses Jev to choose context and route work for coding agents.
JevTypeScriptA stock research website that compares investing views and tests strategies with simulated money, with Jev as an optional buy, sell or hold decision engine.
Jev
Python
FastAPI
ReactTypeScriptAn agent that watches Solana liquidity pools and rebalances positions before they lose money, with Jev as an optional second opinion.
JevTypeScript
BunStops a coding agent from finishing on a claim: it hooks into Claude Code and Codex, keeps a ledger of what the agent really did, and asks Jev only for the judgment calls.
JevTypeScript
Node.js
Claude Code
Codex
