They cited the company's dominance of the market for the chips driving the artificial-intelligence (AI) boom.

Demand Progress and nine other groups wrote a letter this week, urging Department of Justice antitrust chief Jonathan Kanter to probe business practices at Nvidia, whose market value hit $3 trillion this summer on demand for chips able to run the complex models behind generative AI.

The groups, which oppose monopolies and promote government oversight of tech companies, among other issues, took aim at Nvidia's bundling of software and hardware, a practice that French antitrust enforcers have flagged as they prepare to bring charges.

"This aggressively proprietary approach, which is strongly contrary to industry norms about collaboration and interoperability, acts to lock in customers and stifles innovation," the groups wrote.

--Reuters--