Do you mean with the ChatGPT function or voice commands? You can currently give voice commands in English, German, Spanish, French, Chinese, Korean and Japanese.

I’m unsure exactly which languages support ChatGPT but I remember reading ChatGPT only supports a limited number of languages at this time.

You could try asking Loona to respond in Polish in ChatGPT mode, she should be able to engage in a Polish dialogue with you but may get confused after a while and revert back to English.