Apple could benefit from China's DeepSeek, which appears to deliver cheaper AI models. Its competitors have already spent big on their own efforts.

The AI model that shook the world is part of a broad trend to squeeze more out of chips using what's called sparsity.

Tech stocks tumbled as Chinese AI startup DeepSeek's advances raised fears of intensified competition, shaking investor confidence. This live blog is closed.

The news of the focus on AI came as part of a leaked memo from Apple's head of AI John Giannandrea. According to memo, the AI group is "focused on revamping the underlying infrastructure of Siri and improving the company's in-house AI models."

Apple emerges as a “relative winner” as DeepSeek shifted investor narratives on AI, wrote Morgan Stanley analysts led by Brian Nowak in a Tuesday note to clients, explaining Apple’s “AI ambitions are far more contained” than the other “magnificent seven” American tech leaders.

Apple released a software update for iPhones, iPads and Macs that turns Apple Intelligence on by default for users with supported devices.

As Chinese AI application DeepSeek attracts hordes of American users, Trump administration officials, lawmakers and cybersecurity experts are expressing concern that the technology could pose a threat to U.S. national security.

Approximately $1 trillion is set to be spent globally on AI development in the coming years, according to estimates by Goldman Sachs. But DeepSeek developed its AI model for $6 million, according to Wedbush Securities analyst Dan Ives.

"The Mac will get the upgraded Mail app that uses AI to prioritize messages and sort content into different inboxes," Gurman wrote in his "Power On" newsletter on Sunday. "Right now, iPad and iPhone users are able to tap into the feature — which is terrific — but Mac customers have been left behind. That changes with macOS 15.4, I’m told."

DeepSeek has overtaken ChatGPT as the most popular free app on both iOS and Android. While you can try it out now, you might not want to.