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ZeroTwo is built for a global audience. You can use ZeroTwo in 11 languages — your language setting affects both the interface text and ZeroTwo’s default response language.

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Supported Languages

ZeroTwo currently supports the following 11 languages:
LanguageNative NameCodeRTL
EnglishEnglishenNo
SpanishEspañolesNo
FrenchFrançaisfrNo
GermanDeutschdeNo
PortuguesePortuguêsptNo
RussianРусскийruNo
ArabicالعربيةarYes
HebrewעבריתheYes
Hindiहिन्दीhiNo
Japanese日本語jaNo
Chinese Simplified中文zhNo

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How to Change Your Language

1

Open Settings

Click your avatar or the Settings icon to open the Settings dialog
2

Go to Personalization

Select the Personalization tab
3

Select Language

Find the Language dropdown and select your preferred language
4

Changes take effect immediately

The interface updates instantly. No page reload required.

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RTL (Right-to-Left) Support

Arabic and Hebrew are fully supported with right-to-left layout rendering. When you select Arabic or Hebrew as your language:
  • The entire ZeroTwo interface mirrors to RTL layout
  • Text input fields, menus, panels, and navigation all render correctly in RTL
  • Canvas mode supports RTL text editing
  • AI responses in Arabic and Hebrew render with proper RTL alignment
RTL support applies to the ZeroTwo interface. The behavior of embedded third-party content (e.g., web search sources) depends on those sources’ own RTL support.

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Response Language Behavior

Your language setting affects both the interface and ZeroTwo’s default response language. Here’s how it works in practice: When language is set to English:
  • The interface shows in English
  • ZeroTwo responds in English by default
When language is set to Spanish:
  • The interface shows in Spanish
  • ZeroTwo responds in Spanish by default
When you write in a different language than your setting: ZeroTwo typically responds in the language you wrote in, regardless of your setting. For example, if your setting is English but you write a message in French, ZeroTwo will usually reply in French. To force a specific response language: include it explicitly in your prompt: “Respond in German”, “Répondez en français”, “日本語で答えてください”

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AI Model Language Support

Most major AI models support multilingual input and output. However, quality varies:
Language Support LevelModels / Notes
Excellent (all major models)English
Very goodSpanish, French, German, Portuguese, Japanese, Chinese
GoodArabic, Russian, Hindi
VariableHebrew (quality depends on the specific model)
English typically gets the best results across all 95+ models. For other languages, results are generally excellent but may vary between models. Some models are specifically stronger in certain languages — for example, Qwen models excel at Chinese, Japanese, and Korean; DeepSeek models have strong Chinese language support.

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Tips for Multilingual Use

If you’re working in multiple languages in the same session, you can explicitly specify the language in each prompt regardless of your global setting: “Answer this in Spanish:”, “Translate to Japanese:”, etc. This gives you precise per-message control.
Choosing the right model for non-English languages:
  • Chinese (Simplified): Qwen Max, DeepSeek Chat, GLM 4.6 (ZAI)
  • Japanese: Qwen Max, Claude Sonnet, GPT-4o
  • Arabic: GPT-4o, Claude Sonnet
  • Hindi: GPT-4o, Claude Sonnet, Gemini Pro
  • Russian: GPT-4o, Claude Sonnet, Mistral Large
For translation tasks: any premium model handles translation well. GPT-4o and Claude Sonnet are particularly reliable for nuanced translation work.