Nvidia is facing an antitrust investigation by the U.S. Department of Justice, focusing on its dominant market position in the artificial intelligence sector and whether it has taken measures to stifle competition, including penalizing suppliers that do not use its AI chips. This news has led to a significant drop in Nvidia's stock price, resulting in a market value loss of $279 billion. Although the overall trend of stock prices remains an upward trajectory, the AI boom has driven high sales of its expensive chips. Nvidia's recently launched Blackwell series AI chips are facing delayed market release due to design flaws, intensifying competition with rivals.

The ruling in the antitrust lawsuit against Google has had a profound impact on tech giants, especially Apple. The decision determined that Google's payments to device manufacturers for search services were illegal, leading to a nearly 5% drop in Apple’s stock price, highlighting the rapid pace of development and the trend of self-reorganization in the tech industry. Apple is actively working to reduce its reliance on traditional search by improving Siri, integrating AI chatbots, and betting that AI technology will eventually replace conventional search. Apple's cooperation with OpenAI and its plans to collaborate with Google’s AI chatbot, Gemi, are key to this strategy.

The US Justice Department is investigating Nvidia's acquisition of Israeli AI startup Run:ai, suspecting that it may violate antitrust laws. In April of this year, Nvidia announced the acquisition but did not disclose the price, which is estimated to be around $700 million. The Justice Department has inquired about the transaction's competitive impacts from market participants, but the scope of the investigation is unclear. Nvidia stated that it complies with the law, supports industry innovation, and is willing to provide any necessary information. Run:ai has not responded to requests for comment. US regulators are ramping up scrutiny of anticompetitive behavior in the AI sector, particularly concerning large tech companies.

US Senators urge limitations on Amazon, Microsoft, and Google's development of large language models. Warren believes tech giants have too much power in the AI field and proposed banning them from developing cutting-edge AI technologies, calling for the splitting of Google and Amazon and restrictions on their operations.

The U.S. Department of Justice and the Federal Trade Commission may initiate an antitrust investigation into the relationship between OpenAI and Microsoft over concerns that their collaboration may create unfair competition in the artificial intelligence market. This news comes less than two weeks after the European Commission announced a review of the partnership between Microsoft and OpenAI.