Supported Languages

The AssemblyAI API and the Playground support these languages:

The Playground includes automatic language detection so it can route your audio to the appropriate model for transcription. If your audio contains multiple languages, you should split it into multiple files and submit them separately.

Note: When submitting files via the Playground in a language other than English, be sure to only select "Transcription" on the models page. That way the automatic language detection feature will be used to route the request to the appropriate model. Other features such as "Auto Chapters" are currently only available for the English model.

You can use the optional language_code parameter to specify the language of the spoken audio in the files you are submitting to the API. If you do not include a language_code parameter in your request the default value will be en_us. If you are 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.

Check out this section of our documentation to learn more about using the language_code parameter.