OpenAI logo is seen in this illustration taken May 20, 2024. — ReutersThe valuation of ChatGPT developer OpenAI soared to a chart-topping $500 billion in a deal for employees to sell a limited number of shares, financial media reported Thursday.If confirmed, OpenAI workers' sale of a...from The News International - Sci-Tech https://ift.tt/k7ycj3A