Artificial intelligence (AI) has increasingly become part of everyday life over the past decade.
It is used for everything from personalising social media feeds to powering medical breakthroughs.
But as big tech firms and governments vie to be at the forefront of AI's development, critics have expressed caution over its potential misuse, ethical complexities and environmental impact.
What is AI and what is it used for?
AI allows computers to learn and solve problems in ways that can seem human.
Computers cannot think, empathise or reason.
However, scientists have developed systems that can perform tasks which usually require human intelligence, trying to replicate how people acquire and use knowledge.
AI programmes can process large amounts of data, identify patterns and follow detailed instructions about what to do with that information.