Adapt Intent Parser vs Regex vs Wit.AI, API.AI, LUIS

a. Is there any difference between using Adapt Intent Parser than using traditional regex? (except for the simpler syntax, and the confidence point)

b. What is the main difference in concept between Adapt Intent Parser and Wit.AI, API.AI, LUIS?

In Adapt, I see we just add some rule (like regex), but in Wit.AI, API.AI, LUIS, we need to train by sample sentence.

Thank you a lot. I really think Adapt have a lot of potential, but I wonder is it fit my need. :slight_smile: