Google Open Source - All of Googles open source projects under a single umbrella
nlp_compromise - NLP tool for understanding, changing & playing w/ english.
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
JAICP - JAICP (Just AI Conversational Platform) is a full-fledged conversational platform: scalable, NLP-powered, and secured. Build chatbots, voice assistants, smart devices in the snap of a finger
Code NASA - 253 NASA open source software projects
Facebook DeepText - Facebook's text understanding engine