Artificial Intelligence is driven by Natural Language Processing (NLP) and Natural Language Generation (NLG) - these tools are now used in Google Translations which most of the time a hugely accurate. 

Alexa and Siri.

And now - email marketing.

And guess what?

This one AI tool is writing 98% better email subject lines than humans and has increased Virgin's open rates by 2% which has led to millions of pounds of sales.