Jev 101jev.page
Official siteStart the 101
Hub101DemosUpdatesTalksSocialWhat's the difference?01 · What is Jev?02 · How it works03 · Questions04 · Use cases05 · Confidence06 · Recipes07 · Limits08 · Model card09 · First call10 · FAQ

What's the difference?

If you know ChatGPTvs ChatGPTWhen to use whichDemo stagesUpdatesEcosystemTalks & appearancesSocial postsReadingsOther 101sWhat's the difference?ResourcesAbout this guideStart the 101TypeSafe console ↗

All stages · Demo 88

No double no

Official jaggedness: double negatives and “not un-refundable” rot the answer. Name the field. Ask “is refundable?”

NoulDirect vs double-negative

A crossed-out riddle beside a one-line Noul. Same ticket, two wordings, only one you should ship.

replaydirect —riddle —

ticket

don’t ship this instruction

ship this

direct P(refundable)0%
double-neg P0%

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.