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Upload a Korean EPUB and get the first fifteen pages back in Vietnamese. Korean and Vietnamese both call people by their relationship rather than by a neutral pronoun, which makes this pair unusually well matched.
The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.
A Korean speaker says oppa or hyŏng where a Vietnamese speaker says anh, and both mean roughly "older brother, and by extension you". The systems are not identical — Korean distinguishes the speaker's gender where Vietnamese does not — but they are built on the same principle, so the register that English would flatten into "you" survives the crossing almost intact.
The vocabulary matches too. Korean's formal register is largely Sino-Korean, Vietnamese's is largely Sino-Vietnamese, and both descend from the same Chinese roots. 학생 and học sinh are the same word, twice removed. That correspondence is systematic rather than lucky, and it makes formal and academic Korean read naturally in Vietnamese.
What still has to be settled once is the cast. The model reads the whole book first and maps who is older than whom, because neither language can write a line of dialogue without knowing.
A DRM-free EPUB. The file stays on your device; only the text of the sample is sent.
The cast and their relative ages are mapped once, then carried into Vietnamese pronouns that say the same thing.
About 4,500 words, with Korean speech levels expressed through the Vietnamese pronoun system rather than dropped.
A complete EPUB with the book's own styling. Vietnamese diacritics render everywhere.
The systems match, they do not coincide. Korean marks the speaker's gender in its address terms and Vietnamese does not, so some information narrows on the way across.
Names are romanised, not translated. The same person keeps the same spelling throughout the sample.
Fifteen pages, not the book. About 4,500 words.
The text is sent to a server and discarded when the job finishes.
Far better than into English. Vietnamese pronouns declare the relationship in every sentence, so the deference or intimacy a Korean verb ending carries has a place to go instead of disappearing into a neutral "you".
Yes, and systematically. A large share of formal Korean vocabulary and a large share of formal Vietnamese vocabulary come from the same Chinese roots, so abstract and technical terms correspond closely — which is why this pair reads more naturally than Korean into a European language.
Romanised consistently, with the same spelling on every appearance. That consistency is one of the reasons the model reads the entire book before translating anything.
About 4,500 words, roughly fifteen pages, five books a day per person.
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The app runs the same engine across the entire book and can show the Vietnamese next to the Korean, with your position synced between devices.
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