Just came across this via a Japanese article where the author did a (extremely limited) test of it, and FWIW seemed to agree it was better than Google Translate and DeepL. No public API or anything yet but may be worth keeping an eye on.
I don't actually know anything about Kagi, but they do other stuff apart from machine translation too.
#Translation #MachineTranslation
Kagi Translate - We speak your language | Kagi Blog
https://blog.kagi.com/kagi-translate