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Kolena supports a wide variety of world languages:1
AfrikaansAlbanianAmharicArabic
ArmenianAssameseAzerbaijaniBasque
BelarusianBengaliBosnianBulgarian
CatalanCebuanoChinese (Simplified)Chinese (Traditional)
CorsicanCroatianCzechDanish
DhivehiDutchEnglishEsperanto
EstonianFilipino (Tagalog)FinnishFrench
FrisianGalicianGeorgianGerman
GreekGujaratiHaitian CreoleHausa
HawaiianHebrewHindiHmong
HungarianIcelandicIgboIndonesian
IrishItalianJapaneseJavanese
KannadaKazakhKhmerKorean
KrioKurdishKyrgyzLao
LatinLatvianLithuanianLuxembourgish
MacedonianMalagasyMalayMalayalam
MalteseMaoriMarathiMeiteilon (Manipuri)
MongolianMyanmar (Burmese)NepaliNorwegian
Nyanja (Chichewa)Odia (Oriya)PashtoPersian
PolishPortuguesePunjabiRomanian
RussianSamoanScots GaelicSerbian
SesothoShonaSindhiSinhala (Sinhalese)
SlovakSlovenianSomaliSpanish
SundaneseSwahiliSwedishTajik
TamilTeluguThaiTurkish
UkrainianUrduUyghurUzbek
VietnameseWelshXhosaYiddish
YorubaZulu

Translation Performance

Translation between English and the languages listed above is also well-supported, with performance considered state-of-the-art.2

Audio Transcription

Every language listed above is also supported for audio transcription.3
1 Supported with at least 90% accuracy according to language benchmarks, relative to performance using English. 2 Performance for a tested subset of these languages was found to be state-of-the-art when compared against other available AI solutions (as of August 2025). 3 Audio transcription accuracy varies by language, with high accuracy (≤10% WER) for primarily widely spoken and well-resourced languages like English, Spanish, French, German and Japanese; good accuracy (10–25% WER) for languages such as Arabic, Hindi, Korean, and Vietnamese.
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