What is the best way to create a multilingual chatbot?

[ChrisRahme (Chris Rahmé)]

Hello

Hope these threads will help:

• The different options you have to build a multilingual bot:
  • Mutlilingual bot (capturing user input and intercepting bot's output for translation) - #2 by ChrisRahme
  • Multilingual ChatBot - #2 by ChrisRahme
• How to utter a response based on the language:
  • How can i make multi language rasa chatbot having at least two languages? - #8 by ChrisRahme
  • Is there any way to switch between two models - #8 by ChrisRahme

You can also take a look at my multilingual bot here

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@EvanMath

But which one is better? What do you suggest?

It depends on your use-case:

• Do you want the bot to
  • understand all languages but reply in one? (easiest)
  • understand all languages but reply in the one specified by the user? (my approach)
  • understand all languages and reply in the detected language of the last message? (hardest)
• Would the same person usually talk in multiple languages?
  • If yes, you can insert all languages all in the same chatbot/deployment using one of the three options above
    • This saves resources but the chatbot’s files will be bloated due to all the languages and the chatbot may confuse languages
  • If no, consider having three different chatbots/deployments with a language selector on the UI to connect to these different bots
    • This is more expensive in terms of deployment but each chatbot will have a better accuracy and cleaner files