ConversAI is a personal AI chat assistant that's good at generating automated responses and summarizing messages. It uses natural language processing and machine learning to generate human-sounding responses and works in multiple languages. It can be integrated with common chat apps like Twitter, Gmail, WhatsApp, Facebook Messenger and Instagram, so it's useful for whatever chat app you're using.
Another tool worth a look is Help Scout, an AI-powered customer service tool that can automate some routine work and smooth out communication. Among its tools are AI Summarize, which summarizes email threads, and AI Assist, which fills in the blanks and adjusts tone. If you're dealing with a lot of back-and-forth emails, it could help you work more efficiently.
If you're looking for a more specialized summarization tool, Briefy breaks down long documents into structured summaries in different formats. It works in multiple languages and has an easy-to-use interface, letting you quickly grasp the gist of any text and follow up with questions. Briefy works in Gmail and as a Chrome extension.