OpenAI is in talks to raise $6.5 billion from investors, in which Apple is expected to participate, at a valuation of $150 billion, Bloomberg News reports Wednesday citing “people familiar with the situation.” Rachel Metz, Edward Ludlow, Gillian Tan, and Mark Bergen for Bloomberg News: The new valuation, a figure that doesn’t include the money being raised, is significantly higher than the $86 billion valuation from the company’s tender offer earlier this year, and cements its place as one of the most valuable startups in the world. At the same time, OpenAI is also in talks to raise $5 billion in debt from banks in the form of a revolving credit facility, said one of the people, all of…