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Nvidia chief executive Jensen Huang has labelled artificial intelligence a "multitrillion-dollar opportunity", unveiling the tech behemoth's next-generation of chips which will fuel the next phase of the AI revolution.

Meanwhile, a little-known Australian billionaire is battling legal action which could cost him hundreds of millions of dollars, while facing separate allegations he berated staff with homosexual slurs.

And check out the top products from the world's largest electronics show in Las Vegas, where companies are harnessing AI to help customers do everything from controlling a thermostat if a child has a cold to ordering a coffee on the drive to work.