According to Bloomberg, artificial intelligence (AI) company Openai is looking to raise $6.50 billion from investors at a $150 billion valuation, making it one of the world's most valuable startups. The valuation would be higher than the $86 billion the company announced when it made a stake sale offer to employees and the $100 billion it announced in August. Thrive Capital will lead the investment round, with Microsoft also participating. Apple and Nvidia, two tech giants, will also participate in the talks.