Alex Chriss, CEO of PayPal Inc.Courtesy: PayPalPayPal has signed a deal with OpenAI to have its digital wallet embedded into ChatGPT so users can pay for items found through the leading consumer AI tool, the company told CNBC exclusively.The agreement, sealed over the weekend, means that starting next year, both sides of PayPal's ecosystem can plug into ChatGPT: PayPal users can purchase items through the AI platform, and its merchants can sell on it, with their inventory listed there, according...