Meta’s Yann LeCun asserts open-source AI is the future, as the Chinese open-source model DeepSeek challenges ChatGPT and Llama, reshaping the AI race.

Artificial intelligence startup DeepSeek released the latest version of its open-source AI last week, which rivals the best models of tech giants like Meta and ChatGPT creator OpenAI. DeepSeek-R1 surpasses its rivals in several key metrics, while also costing just a fraction of the amount to train and develop.

Mark Zuckerberg has long championed Meta Platforms Inc.’s open-source approach to artificial intelligence software — which lets other companies access and build on top of its technology — saying that having an American model as the underpinning of new products was key to ensuring US dominance over China in AI.

The sudden rise of Chinese AI app DeepSeek has leaders in Washington and Silicon Valley grappling with how to keep the U.S. ahead in the crucial technology.

Nvidia shares' 9% recovery Tuesday was the second-best day in terms of market cap added for any company ever, trailing only a record it set in July.

Technology stocks regained ground on Tuesday, a day after a low-cost Chinese AI model rattled markets, while traders rotated back into the dollar from safe-haven currencies. The tech rebound boosted Wall Street's main stock indices,