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NavTalk Real-time Digital Human API supports 60+ languages for multilingual conversations. NavTalk can automatically detect the user’s input language and respond in the same language without any code configuration. The system intelligently recognizes the user’s language and automatically switches responses accordingly—all happening seamlessly during the conversation with no additional programming required. Automatic Detection (Recommended): Don’t specify a language in the prompt - NavTalk will automatically detect and match the user’s input language: 
socket.onopen = () => {
  const config = {
    prompt: 'You are a helpful assistant.'
    // No language specified - will auto-detect
  };
  
  socket.send(JSON.stringify({
    type: 'realtime.input_config',
    data: { content: JSON.stringify(config) }
  }));
};
Explicit Language Setting: Specify the desired response language in the prompt: 
socket.onopen = () => {
  const config = {
    prompt: `You are a helpful assistant.
Please respond in Chinese.`
  };
  
  socket.send(JSON.stringify({
    type: 'realtime.input_config',
    data: { content: JSON.stringify(config) }
  }));
};

​
Complete List of Supported Languages

NavTalk supports 60+ languages for seamless multilingual conversations. Below is the complete list:
  • Afrikaans (南非荷兰语)
  • Arabic (阿拉伯语)
  • Armenian (亚美尼亚语)
  • Azerbaijani (阿塞拜疆语)
  • Belarusian (白俄罗斯语)
  • Bosnian (波斯尼亚语)
  • Bulgarian (保加利亚语)
  • Catalan (加泰罗尼亚语)
  • Chinese (中文)
  • Croatian (克罗地亚语)
  • Czech (捷克语)
  • Danish (丹麦语)
  • Dutch (荷兰语)
  • English (英语)
  • Estonian (爱沙尼亚语)
  • Finnish (芬兰语)
  • French (法语)
  • Galician (加利西亚语)
  • German (德语)
  • Greek (希腊语)
  • Hebrew (希伯来语)
  • Hindi (印地语)
  • Hungarian (匈牙利语)
  • Icelandic (冰岛语)
  • Indonesian (印度尼西亚语)
  • Italian (意大利语)
  • Japanese (日语)
  • Kannada (卡纳达语)
  • Kazakh (哈萨克语)
  • Korean (韩语)
  • Latvian (拉脱维亚语)
  • Lithuanian (立陶宛语)
  • Macedonian (马其顿语)
  • Malay (马来语)
  • Marathi (马拉地语)
  • Maori (毛利语)
  • Nepali (尼泊尔语)
  • Norwegian (挪威语)
  • Persian (波斯语)
  • Polish (波兰语)
  • Portuguese (葡萄牙语)
  • Romanian (罗马尼亚语)
  • Russian (俄语)
  • Serbian (塞尔维亚语)
  • Slovak (斯洛伐克语)
  • Slovenian (斯洛文尼亚语)
  • Spanish (西班牙语)
  • Swahili (斯瓦希里语)
  • Swedish (瑞典语)
  • Tagalog (塔加洛语)
  • Tamil (泰米尔语)
  • Thai (泰语)
  • Turkish (土耳其语)
  • Ukrainian (乌克兰语)
  • Urdu (乌尔都语)
  • Vietnamese (越南语)
  • Welsh (威尔士语)
Best Practice: For the best user experience, use automatic language detection. This allows users to communicate in their preferred language without any configuration, and the system will seamlessly adapt.