Chatbots are programs that simulate human conversation. These can range from simple rule-based chatbots, where the user is limited to clicking on buttons or suggested replies that the bot provides, all the way to fully-fledged bots that can handle context, chitchat, and other complex things, which are otherwise very common in human conversation.

Quantitatively, there are 5 levels of conversational AI, starting from simple rule-based systems to really adaptive chatbots, who can handle complex scenarios, like when even the user isn’t sure what they want and can reply to users based on the level of detail they want.


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