Amazon Lex is ranked 3rd in Chatbot Development Platforms while Botsup is ranked 9th in Chatbot Development Platforms. Amazon Lex is rated 9.0, while Botsup is rated 0.0. The top reviewer of Amazon Lex writes "Extremely stable with great speech recognition and helpful technical support". On the other hand, Amazon Lex is most compared with Google Dialogflow, Salesforce Einstein Bot, Rasa, IBM Watson Assistant and Microsoft Azure Language Understanding, whereas Botsup is most compared with .
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