Deep Mind, which specializes in machine learning, advanced algorithms and systems neuroscience, says its aim is to develop computers that think like humans.
While Google has confirmed the purchase it has declined to clarify specifics of the acquisition, the Guardian reported Monday.
"Deep Mind was generally interested in reinforcement learning, and in deep learning, which is very useful in mining so called big data,' something Google has a lot of and is interested in processing," Murray Shanan, a professor of Cognitive Robotics at Imperial College London, told the newspaper.
Deep Mind was started 2 years ago, with one of it founders being former chess prodigy and neuroscientist Demis Hassabis .
Facebook reportedly made a failed attempt to acquire Deep Mind in December 2012.
Deep Mind is the latest in a long line of acquisitions by Google of similar artificial intelligence firms and robotics firms, including Boson Dynamics.