OpenAI has filed a confidential initial public offering, the ChatGPT maker said Monday, bringing it one step closer to its official market debut.  "We recently submitted a confidential S-1. We expect it to leak so we're just announcing it," OpenAI  said in a statement published Monday to its website. "We have not decided on timing yet; it may be a while because there are things we want to do that are likely easier as a private company. But it's a complicated set of tradeoffs and this gives us