Guides

Supported Languages

Supported languages

Language Code	Display Name
`EN`	English
`EN_GB`	English (United-Kingdom)
`FR`	French
`FR_BE`	French (Belgium)
`FR_CA`	French (Canada)
`RO`	Romanian
`NL`	Dutch
`ES`	Spanish
`DE`	German
`DE_CH`	German (Switzerland)
`DE_AT`	German (Austria)
`IT`	Italian
`ES_LATAM`	Latin-America-Spanish
`BG`	Bulgarian
`HE`	Hebrew
`JA`	Japanese
`NL_BE`	Dutch (Belgium)
`EN_AU`	English (Australia)
`PT_PT`	Portuguese (Portugal)
`PT_BR`	Brazilian Portuguese
`SV_SE`	Swedish (Sweden)
`DA_DK`	Danish (Denmark)
`FI_FI`	Finnish (Finland)
`PL_PL`	Polish (Poland)
`LT_LT`	Lithuanian
`NB_NO`	Norwegian Bokmål
`NN_NO`	Norwegian Nynorsk
`SL_SI`	Slovenian
`HU`	Hungarian
`HU_HU`	Hungarian
`CS_CZ`	Czech
`EL_GR`	Greek (Greece)
`EL_GR_LATIN`	Greek (Greece, Latin script / Greeklish)
`EL_GR_GREEK`	Greek (Greece, Greek Script)
`HR_HR`	Croatian (Croatia)
`SR_RS`	Serbian (Serbia)
`TR_TR`	Turkish (Turkey)
`EN_IE`	English (Ireland)
`EN_CA`	English (Canada)
`AF_ZA`	Afrikaans (South Africa)
`ZU_ZA`	Zulu (South Africa)
`ET_EE`	Estonian (Estonia)
`LV_LV`	Latvian
`SK_SK`	Slovak
`GA_IE`	Irish (Gaeilge)
`RU_RU`	Russian (Russia)
`UA_UA`	Ukrainian (Ukraine)
`HI_IN`	Hindi (India, Devanagari script)
`HI_IN_LATIN`	Hinglish (India, Hindi-English mix in Latin script)
`KO_KR`	Korean (South Korea)
`MS_MY`	Malay (Malaysia)
`MT_MT`	Maltese (Malta)
`AR`	Arabic
`ZH_CN`	Chinese (Simplified, Mainland China)
`ZH_TW`	Chinese (Traditional, Taiwan)
`ZH_HK`	Cantonese (Hong Kong, written colloquial Cantonese in Traditional characters)

Language rewrites

A few languages get a final clean-up pass after the reply is written. Each one is a key of replyParameters.postProcessing, and a switch under Language-specific formatting in your project settings.

Key	Language	What it does
`greekRewrite`	Greek	Replaces `;` with `?`, and accented letters with plain ones
`russianRewrite`	Russian	Removes the quotation marks a reply puts around single slang words or short informal phrases; genuine quoted sentences stay
`romanianRewrite`	Romanian	Replaces letters with diacritics with plain ones
`germanRewrite`	German, Austrian and Swiss German	Removes the apostrophe from the chat forms gehts, gibts, wenns, sichs and habs
`arabicRewrite`	Arabic	Strips short-vowel marks and stretched letters, see Arabic

New projects start with all of them on. Projects created before 14 September 2026 have them off until you turn them on, and arabicRewrite is off for projects created before 8 October 2026. A request that sends postProcessing replaces your project setting for that reply, and a key it leaves out is off.

Hindi and Hinglish

Use HI_IN for Hindi replies written in Devanagari, or HI_IN_LATIN for Hinglish: conversational Hindi mixed with English, written in Latin letters. These are separate values for the language parameter and can also be used in additionalLanguages.

Both values are also accepted by Smart Translation, as source or target language.

For example, "language": "HI_IN_LATIN" requests Hinglish replies. Setting "language": "HI_IN" with "additionalLanguages": ["EN"] instead allows the persona to reply in Hindi or English according to the user's language; it does not specifically request a mixed Hinglish register.

Chinese and Cantonese

Three values cover Chinese:

ZH_CN requests Mandarin written in Simplified characters, as used in mainland China.
ZH_TW requests Mandarin written in Traditional characters, with Taiwan vocabulary.
ZH_HK requests Cantonese as people in Hong Kong text it: colloquial Cantonese written in Traditional characters, not standard written Chinese.

Arabic

AR produces replies in everyday Arabic, written the way people text, without short-vowel marks. When the user writes in a dialect, the persona follows it.

The arabicRewrite option in replyParameters.postProcessing also strips any short-vowel marks (harakat) and stretched letters (tatweel) that remain in Arabic replies. It is enabled for new projects. Projects created before this option existed have it turned off until they enable it.