Reported IPO push could make ChatGPT’s maker one of Wall Street’s biggest AI tests, as Sam Altman’s company races toward a possible September debutOpenAI is preparing to confidentially file for a U.S. initial public offering in the coming weeks, a source familiar with the matter told Reuters on Wednesday.1 View gallery OpenAI CEO Sam Altman (Photo: Jason Redmond / AFP)OpenAI is aiming to go public as early as September and is working with Goldman Sachs and Morgan Stanley on a draft IPO prospectus that it plans to file with the regulators soon, the source said.The AI company did not immediately respond to a Reuters request for comment. The Wall Street Journal first reported on the company's plans.OpenAI had raised $122 billion earlier this year, likely marking Silicon Valley's largest-ever funding round.But in recent months, it has revised its product roadmap twice amid competition from rivals, first Google and then Anthropic, with some industry watchers expecting Anthropic's revenue growth to surpass OpenAI's within months to come.OpenAI was considering filing with securities regulators as soon as the second half of 2026, Reuters had exclusively reported last year.