Jev language support
The models page is short on this point and we will not pad it.
English is the primary training language and where TypeSafe says accuracy is currently best. Other languages, including CJK scripts, are handled but not equally well.
Their guidance: test on your own content before relying on Jev for a non-English workload, and pay close attention to confidence when routing.
This site is English-only by design. We do not publish localized copies that could drift from the official docs.
If you must evaluate non-English state, keep the questions in clear English or in the language of the state (test both), log versioned model IDs, and send uncertain cases to humans. Do not assume a Noul of 0.9 means the same thing across languages until you measure it.
Sources
Public TypeSafe or adjacent documentation only. No private claims.