The first TPU, shown off last year as a special-purpose chip designed specifically for machine learning, is used by the AlphaGo artificial intelligence system as the foundation of its predictive and decision-making skills. Google also uses the computation power of TPUs every time someone enters a query into its search engine. More recently, the technology has been applied to machine learning models used to improve Google Translate, Google Photos, and other software that can make novel use of new AI training

Source: Google’s next-generation AI training system is monstrously fast – The Verge