Elon Musk’s artificial-intelligence startup xAI is in advanced talks to raise $15 billion in fresh equity at a valuation of $230 billion, the Wall Street Journal reported on Tuesday. The fundraising terms were outlined to investors by Musk’s wealth manager, Jared Birchall, on Tuesday night, the report said. It was not clear whether the valuation figure Birchall shared was pre- or post-money, the paper added. Reuters could not immediately verify the report. Jared Birchall could not be