Jev playground

Three kinds of question

Jev does not write text. You give it something to read, the state, and ask it questions about it. Every question is one of three kinds, and each comes back typed, with the probabilities behind it.

A Noul asks whether something is true and returns the probability that it is. A probability near a half means genuinely unsure, not a lukewarm yes. A Choice picks one option from a set you define and returns a probability for every option, so you can see how close the runner-up came. A Score places the state on levels you describe in your own words, lowest first, and returns where it sits between them.

Many questions cost almost nothing more

The state is read once and every question runs against it in parallel. Adding a question adds only its own tokens, not another read, which is why the ranking example asks one Score per headline instead of asking for a list.

Runs use your own TypeSafe key, sent with each request and never stored on the server. The price is per input token; output tokens are free.