OpenAI's confidential S-1 filing, Anthropic's Claude Fable/Mythos 5, Visa's ChatGPT payments deal, and the fracturing Microsoft-OpenAI dynamic dominate this week's AI landscape.

ChatGPT maker OpenAI says it has filed paperwork for an IPO but may remain private while it pursues other priorities.

June 8 : ChatGPT-maker OpenAI confidentially filed for a U.S. initial public offering on Monday, joining rival Anthropic in a push toward the stock market as investors seek…

The moves comes days ahead of SpaceX's IPO.