Artificial intelligence is classified into two groups: strong and weak AI. The AI around us today are classified as weak AI. This includes supposedly advanced AIs like smart assistants and computers that have been defeating chess masters since 1987. The difference between strong and weak AI is the ability to reason and behave like a human brain.
Weak AI generally do what they were programmed to do, irrespective of how sophisticated that task might seem to us. Strong AI, at the other end of the spectrum, has the consciousness and reasoning ability of humans. It is not limited by the scope of its programming and can decide what to do and what not to do without human input. Strong AI does not exist for now, but scientists predict they should be around in ten years’ time.