A group of financial firms, including Apollo Global and Blackstone, is working with Nvidia to put together a $500 billion funding package for AI infrastructure development, a person familiar with the matter told Reuters on Monday. Nvidia’s shares fell over 3% in afternoon trading. The tie-up highlights Nvidia’s efforts to raise capital for the chips, power generation and data centers underpinning the AI boom. Big Tech companies have signaled that spending on AI would not slow down, with…