RankBrain is a machine learning artificial intelligence system created by Google that was released in October 2015. The goal of RankBrain is to help Google process search results more efficiently and provide more relevant search results for users.

Our friends over at StoneTemple.com recently set out to determine what impact RankBrain has really had on search results. You can get the whole story over here, or check out this cool visual explaining the results of the study: