Plasticity vs Wit: What are the differences?

Developers describe Plasticity as "APIs for human-like natural language interfaces". Today's personal assistants and conversational interfaces fail to handle variations in a user's wording or multiple requests in one sentence. We take a language-based semantic approach to handle complex dialogue. On the other hand, Wit is detailed as "Natural Language for the Internet of Things. Turn speech into actionable data". Wit enables developers to add a modern natural language interface to their app or device with minimal effort. Precisely, Wit turns sentences into structured information that the app can use. Developers don’t need to worry about Natural Language Processing algorithms, configuration data, performance and tuning. Wit encapsulates all this and lets you focus on the core features of your apps and devices.

Plasticity and Wit belong to "NLP / Sentiment Analysis" category of the tech stack.