Jev is specialized, not universal

Jev is compelling because it gives up capabilities that most AI products treat as mandatory. That trade makes it fast, but also defines clear limits.

It does not generate free-form text

Jev returns predefined choices, ordered scores, and probability-like judgments. It does not write explanations, articles, code, or customer replies.

It is text-only today

Images, audio, and video must be converted into text or structured fields before Jev can evaluate them.

Type safety is not factual correctness

Jev can guarantee that an answer follows the requested structure. It can still choose the wrong category or assign an unhelpful score.

English is strongest

TypeSafe says other languages, including CJK scripts, are supported but not equally accurate. Test Chinese and multilingual workloads separately.

It needs bounded decisions

Jev performs best when the possible outputs are known and the surrounding code owns control flow. Open-ended planning and creation still need an LLM, rules, or human judgment.