HONG KONG (AP) - Chinese tech startup DeepSeek 's new artificial intelligence chatbot has sparked discussions about the competition between China and the U.S. in AI development, with many users flocking to test the rival of OpenAI’s ChatGPT.

A frenzy over an artificial intelligence chatbot made by Chinese tech startup DeepSeek was upending stock markets Monday and fueling debates over the economic and geopolitical competition between the U.S. and China in developing AI technology.

LOS ANGELES (AP) - Chinese tech startup DeepSeek said it was hit by a cyber attack on Monday that disrupted users’ ability to register on the site. The company, whose artificial intelligence chatbot has sent the tech world into a frenzy, said that it had suffered "large-scale malicious attacks" on its services.

News from China upset U.S. markets Monday and disrupted the frenzy that had built up around artificial intelligence. A company called DeepSeek said it had developed a large language model that can compete with U.S. AI giants but at a fraction of the cost.

LinkedIn founder Reid Hoffman has been immersed in Silicon Valley since his August 1967 birth in Palo Alto, California, in the shadow of Stanford University, where he and fellow technology luminary Peter Thiel became friends as college students during the 1980s.

WASHINGTON (AP) - Perplexity AI has presented a new proposal to TikTok's parent company that would allow the U.S. government to own up to 50% of a new entity that merges Perplexity with TikTok's U.S. business, according to a person familiar with the matter.

LONDON (AP) - Paul McCartney urged the British government not to make a change to copyright laws that he says could let artificial intelligence companies rip off artists.

LONDON (AP) - Google pledged to crack down on fake online reviews with tougher punishments for rogue reviewers and businesses that try to profit from them, British regulators said Friday following an investigation.