Nvidia CEO Jensen Huang urges the US to stay engaged with China in the global AI race, warning that isolation could hurt innovation and long-term leadership.

Nvidia has hit a new milestone, becoming the first company in the world to reach a market value of $5tn (£3.8tn). The US chip giant has rapidly climbed from a niche graphics-chip designer to an AI titan, as euphoria about the potential of artificial intelligence keeps driving demand for its chips and propelling its stock to record highs.