US court reopens Citgo parent auction for bids, winner to be recommended this month

HOUSTON (Reuters) -A U.S. judge on Monday authorized a court officer overseeing an auction of shares in the parent of Venezuela-owned refiner Citgo Petroleum to receive and negotiate improved bids this week before confirming or changing the winner recommendation he made last month. A final winner recommendation in the complex court-organized auction is expected to…

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Buffett’s Berkshire acquires 5 million shares in UnitedHealth

(Reuters) -Warren Buffett’s Berkshire Hathaway has acquired 5 million shares in UnitedHealth Group, a regulatory filing showed on Thursday, sending the health insurer’s stock up 7% in extended trading. Billionaire investor Buffett owned about 1.18 million shares in UnitedHealth between 2006 and 2009, before selling his entire stake in 2010 amid a broader retreat from…

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OpenAI launches GPT-5 as the AI industry seeks a return on investment

By Anna Tong SAN FRANCISCO (Reuters) -OpenAI launched on Thursday its GPT-5 artificial intelligence model, the highly anticipated latest installment of a technology that has helped transform global business and culture. OpenAI’s GPT models are the AI technology that powers the popular ChatGPT chatbot, and GPT-5 will be available to all 700 million ChatGPT users,…

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