TypeOS is a playground for decision models. Describe a scenario you judge over and over — moderation, triage, scoring, approval — and it builds a judgment framework; every message after that is sent to the Jev decision model and judged against it in milliseconds.
Two modes
Jev-only mode just judges, with no LLM in the loop, and is the fastest. Agent mode lets an LLM act on the verdicts — looking things up, calling tools, taking actions — and hands off to a human when confidence is low.
Live demos
Three live demos sit on the home page: a robot that maps as it explores, a simulated trading account making calls on real Apple daily prices, and batch moderation of live-stream chat. Every run makes real calls.