Language Support

The Cloud Natural Language API supports a variety of languages. These languages are specified within a request using the optional language parameter. Language code parameters conform to ISO-639-1 or BCP-47 identifiers. If you do not specify a language parameter, then the language for the request is auto-detected by the Natural Language API.

The list of supported languages differs depending on the feature.

Content classification

V2 Model

Language	ISO-639-1 Code
Chinese (Simplified)	`zh`
Chinese (Traditional)	`zh-Hant`
Dutch	`nl`
English	`en`
French	`fr`
German	`de`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Portuguese (Brazilian & Continental)	`pt`
Russian	`ru`
Spanish	`es`

V1 Model

Language	ISO-639-1 Code
English	`en`

Syntactic analysis

Language	ISO-639-1 Code
Chinese (Simplified)	`zh`
Chinese (Traditional)	`zh-Hant`
English	`en`
French	`fr`
German	`de`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Portuguese (Brazilian & Continental)	`pt`
Russian	`ru`
Spanish	`es`

Entity analysis

Language	ISO-639-1 Code
Chinese (Simplified)	`zh`
Chinese (Traditional)	`zh-Hant`
English	`en`
French	`fr`
German	`de`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Portuguese (Brazilian & Continental)	`pt`
Russian	`ru`
Spanish	`es`

Sentiment analysis

Language	ISO-639-1 Code
Arabic	`ar`
Chinese (Simplified)	`zh`
Chinese (Traditional)	`zh-Hant`
Dutch	`nl`
English	`en`
French	`fr`
German	`de`
Indonesian	`id`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Portuguese (Brazilian & Continental)	`pt`
Spanish	`es`
Thai	`th`
Turkish	`tr`
Vietnamese	`vi`

Entity sentiment analysis

Language	ISO-639-1 Code
English	`en`
Japanese	`ja`
Spanish	`es`

Text moderation

Language	ISO-639-1 Code
Arabic	*`ar`
Chinese (Simplified)	`zh`
Dutch	*`nl`
English	`en`
French	`fr`
German	`de`
Hindi	*`hi`
Indonesian	*`id`
Italian	`it`
Japanese	`ja`
Korean	`ko`
Portuguese (Brazilian & Continental)	`pt`
Russian	*`ru`
Spanish	`es`

*language support is limited based on the type of text (eg. webpage, chat message, etc) for some attributes. In any case, we recommend thorough evaluation for your use case.