# AI Detection Supported Languages

> The 30 languages supported by the Copyleaks AI Content Detector, with ISO-639-1 codes. Omit the language field and the API auto-detects it.

Get a list of the supported languages for AI Content Detection.

<Note>
This is a list of languages supported by the AI Content Detector. If the `language` field is not supplied, our system will automatically detect the language of the content.
</Note>
## AI Detection Supported Languages

These are the language codes supported by our AI Content Detection, in `ISO-639-1` standard:

| Language                  | Code       |
| :------------------------ | :--------- |
| English                   | `en`       |
| Spanish                   | `es`       |
| French                    | `fr`       |
| Portuguese                | `pt`       |
| German                    | `de`       |
| Italian                   | `it`       |
| Russian                   | `ru`       |
| Polish                    | `pl`       |
| Romanian                  | `ro`       |
| Dutch                     | `nl`       |
| Swedish                   | `sv`       |
| Czech                     | `cs`       |
| Norwegian                 | `no`       |
| Korean                    | `ko`       |
| Japanese                  | `ja`       |
| Chinese (Simplified)      | `zh-CN`    |
| Chinese (Traditional)     | `zh-TW`    |
| Arabic                    | `ar`       |
| Bengali                   | `bn`       |
| Bulgarian                 | `bg`       |
| Croatian                  | `hr`       |
| Greek                     | `el`       |
| Hebrew                    | `he`       |
| Hindi                     | `hi`       |
| Hungarian                 | `hu`       |
| Serbian                   | `sr`       |
| Thai                      | `th`       |
| Turkish                   | `tr`       |
| Ukrainian                 | `uk`       |
| Vietnamese                | `vi`       |

## Frequently asked questions

### How many languages does the Copyleaks AI Detector support?

The AI Content Detector supports 30 languages, each identified by its ISO-639-1 code (for example `en`, `es`, `fr`, `zh-CN`).

### Do I have to specify the language for AI detection?

No. If you omit the `language` field, Copyleaks automatically detects the language of the submitted content. Set `language` only when you want to force a specific one.

### What language code format does the API use?

ISO-639-1 two-letter codes. Chinese is the exception, using `zh-CN` for Simplified and `zh-TW` for Traditional.

### Does the AI Detector support Chinese, Arabic, and Hebrew?

Yes. It supports Chinese (Simplified `zh-CN` and Traditional `zh-TW`), Arabic (`ar`), and Hebrew (`he`), among the 30 supported languages.