What languages does Att SGS4 supports?

[ImLynxy]

I'm looking for a new phone, but I cannot find anywhere, what languages does Att SGS4 supports out of the box? If somebody has Att phone version please check, if can I switch phone's GUI to Chinese, German, Finnish, Russian, Italian. Or it is just 6 languages(English,Spanish,French,Korean...) like it was with SGS3 Att version?

I called Att, Samsung and tried to find an answer online with no success.

I don't know should I buy att version or international one.

Thanks