Supported Languages

Learn what languages are supported by AssemblyAI

This page shows which languages are supported by the AssemblyAI API, their language_code values, and the features available for that language.

AssemblyAI offers two different classes of speech-to-text models: Best and Nano.

Below, you’ll find the supported languages for each class of models, as well as instructions on how to change the language for your transcription.

Supported languages for Best

Language	Language Code	Status	Speaker Labels	Custom Vocabulary	Custom Spelling	Multichannel Transcription	Filler Words	Automatic Language Detection	Automatic Punctuation and Casing	Export SRT or VTT Caption Files	Exporting Paragraphs and Sentences	Profanity Filtering	Word Search	PII Text Redaction	PII Audio Redaction	Detect Important Phrases and Words	Content Moderation	Topic Detection	Sentiment Analysis	Summarization	Auto Chapters	Entity Detection	Real-Time Streaming Transcription
Global English	en	Live	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Australian English	en_au	Live	✅	✅	✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
British English	en_uk	Live	✅	✅	✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
US English	en_us	Live	✅	✅	✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Spanish	es	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅	✅		✅	✅				✅
French	fr	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
German	de	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Italian	it	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Portuguese	pt	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Dutch	nl	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Hindi	hi	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅								✅
Japanese	ja	Live	✅		✅	✅		✅	✅			✅	✅	✅								✅
Chinese	zh	Live	✅		✅	✅		✅	✅				✅	✅								✅
Finnish	fi	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Korean	ko	Live	✅		✅	✅		✅	✅				✅	✅								✅
Polish	pl	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Russian	ru	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Turkish	tr	Live	✅		✅	✅		✅	✅				✅	✅								✅
Ukrainian	uk	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Vietnamese	vi	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅

Supported languages for Nano

Language	Language Code	Status	Speaker Labels	Custom Vocabulary	Custom Spelling	Multichannel Transcription	Filler Words	Automatic Language Detection	Automatic Punctuation and Casing	Export SRT or VTT Caption Files	Exporting Paragraphs and Sentences	Profanity Filtering	Word Search	PII Text Redaction	PII Audio Redaction	Detect Important Phrases and Words	Content Moderation	Topic Detection	Sentiment Analysis	Summarization	Auto Chapters	Entity Detection
Global English	en	Live	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Australian English	en_au	Live	✅		✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
British English	en_uk	Live	✅		✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
American English	en_us	Live	✅		✅	✅	✅		✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Spanish	es	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅	✅		✅	✅				✅
French	fr	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
German	de	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Italian	it	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Portuguese	pt	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅			✅	✅				✅
Dutch	nl	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅								✅
Afrikaans	af	Live			✅	✅		✅	✅				✅	✅								✅
Albanian	sq	Live			✅	✅		✅	✅	✅	✅		✅
Amharic	am	Live			✅	✅		✅	✅	✅	✅		✅
Arabic	ar	Live			✅	✅		✅	✅				✅	✅								✅
Armenian	hy	Live			✅	✅		✅	✅				✅
Assamese	as	Live			✅	✅		✅	✅	✅	✅		✅
Azerbaijani	az	Live			✅	✅		✅	✅				✅
Bashkir	ba	Live			✅	✅		✅	✅	✅	✅		✅
Basque	eu	Live			✅	✅		✅	✅	✅	✅		✅
Belarusian	be	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Bengali	bn	Live			✅	✅		✅	✅				✅
Bosnian	bs	Live			✅	✅		✅	✅	✅	✅		✅
Breton	br	Live			✅	✅		✅	✅	✅	✅		✅
Bulgarian	bg	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Burmese	my	Live			✅	✅		✅	✅				✅	✅								✅
Catalan	ca	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Chinese	zh	Live	✅		✅	✅		✅	✅				✅	✅								✅
Croatian	hr	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Czech	cs	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Danish	da	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Estonian	et	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Faroese	fo	Live			✅	✅		✅	✅	✅	✅		✅
Finnish	fi	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Galician	gl	Live			✅	✅		✅	✅	✅	✅		✅
Georgian	ka	Live			✅	✅		✅	✅				✅	✅								✅
Greek	el	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Gujarati	gu	Live			✅	✅		✅	✅	✅	✅		✅
Haitian	ht	Live			✅	✅		✅	✅	✅	✅		✅
Hausa	ha	Live			✅	✅		✅	✅	✅	✅		✅
Hawaiian	haw	Live			✅	✅		✅	✅	✅	✅		✅
Hebrew	he	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Hindi	hi	Live	✅		✅	✅		✅	✅	✅	✅	✅	✅	✅								✅
Hungarian	hu	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Icelandic	is	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Indonesian	id	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Japanese	ja	Live	✅		✅	✅		✅	✅			✅	✅	✅								✅
Javanese	jw	Live			✅	✅		✅	✅	✅	✅		✅
Kannada	kn	Live			✅	✅		✅	✅				✅
Kazakh	kk	Live			✅	✅		✅	✅	✅	✅		✅
Khmer	km	Live			✅	✅		✅	✅				✅	✅								✅
Korean	ko	Live	✅		✅	✅		✅	✅				✅	✅								✅
Lao	lo	Live			✅	✅		✅	✅	✅	✅		✅
Latin	la	Live			✅	✅		✅	✅	✅	✅		✅
Latvian	lv	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Lingala	ln	Live			✅	✅		✅	✅	✅	✅		✅
Lithuanian	lt	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Luxembourgish	lb	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Macedonian	mk	Live			✅	✅		✅	✅	✅	✅		✅
Malagasy	mg	Live			✅	✅		✅	✅	✅	✅		✅
Malay	ms	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Malayalam	ml	Live			✅	✅		✅	✅				✅
Maltese	mt	Live			✅	✅		✅	✅	✅	✅		✅
Maori	mi	Live			✅	✅		✅	✅	✅	✅		✅
Marathi	mr	Live			✅	✅		✅	✅				✅
Mongolian	mn	Live			✅	✅		✅	✅				✅
Nepali	ne	Live			✅	✅		✅	✅				✅
Norwegian	no	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Norwegian Nynorsk	nn	Live			✅	✅		✅	✅	✅	✅		✅
Occitan	oc	Live			✅	✅		✅	✅	✅	✅		✅
Panjabi	pa	Live			✅	✅		✅	✅				✅
Pashto	ps	Live			✅	✅		✅	✅	✅	✅		✅
Persian	fa	Live			✅	✅		✅	✅				✅	✅								✅
Polish	pl	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Romanian	ro	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Russian	ru	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Sanskrit	sa	Live			✅	✅		✅	✅	✅	✅		✅
Serbian	sr	Live			✅	✅		✅	✅	✅	✅		✅
Shona	sn	Live			✅	✅		✅	✅	✅	✅		✅
Sindhi	sd	Live			✅	✅		✅	✅	✅	✅		✅
Sinhala	si	Live			✅	✅		✅	✅				✅
Slovak	sk	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Slovenian	sl	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Somali	so	Live			✅	✅		✅	✅	✅	✅		✅
Sundanese	su	Live			✅	✅		✅	✅	✅	✅		✅
Swahili	sw	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Swedish	sv	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Tagalog	tl	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Tajik	tg	Live			✅	✅		✅	✅	✅	✅		✅
Tamil	ta	Live			✅	✅		✅	✅				✅	✅								✅
tatar	tt	Live			✅	✅		✅	✅	✅	✅		✅
Telugu	te	Live			✅	✅		✅	✅				✅
Thai	th	Live			✅	✅		✅	✅				✅
Tibetan	bo	Live			✅	✅		✅	✅	✅	✅		✅
Turkish	tr	Live	✅		✅	✅		✅	✅				✅	✅								✅
Turkmen	tk	Live			✅	✅		✅	✅	✅	✅		✅
Ukrainian	uk	Live			✅	✅		✅	✅	✅	✅		✅	✅								✅
Urdu	ur	Live			✅	✅		✅	✅				✅
Uzbek	uz	Live			✅	✅		✅	✅	✅	✅		✅
Vietnamese	vi	Live	✅		✅	✅		✅	✅	✅	✅		✅	✅								✅
Welsh	cy	Live			✅	✅		✅	✅	✅	✅		✅
Yiddish	yi	Live			✅	✅		✅	✅	✅	✅		✅
Yoruba	yo	Live			✅	✅		✅	✅	✅	✅		✅

Specify the language

You can use the optional language_code parameter to specify the language of the spoken audio in the files that you submit to the API. If you don’t include a language_code parameter in your request, it defaults to en_us.

To learn more about using the language_code parameter, see Set language manually.

If you’re unsure of the spoken language spoken in your audio file, you can use our Automatic Language Detection feature to automatically identify the dominant language in your file

Specify the speech model

You can use the optional speech_model parameter to specify the class of models. To learn more, see Select the speech model.