Google Caffeine is the new rewired code of Google search engine that is supposed to be much faster and real time than the Google search that we have come to know. According to some sources, Google Caffeine is now live.
As Matt Cutts from Google earlier put it, this is not some UI change that people would readily recognize and even power users of Google would find it difficult to see the changes. But all the change has been in the internal coding system, and the only big change that you can find from the user’s side is the apparent faster delivery of results.
This is still not confirmed, but we would like to believe that this is true.