DeepPavlov - An open source library for deep learning end-to-end dialog systems and chatbots.

Plato Research Dialogue System - A flexible framework that can be used to create, train, and evaluate conversational AI

Rasa Core - Rasa Core is a well-designed dialogue engine used to create chatbots.

ConvLab - A multi-domain end-to-end dialog system platform

Haystack NLP Framework - Haystack is an open source NLP framework to build applications with Transformer models and LLMs.

Algomo - Assist your customers in every language