OpenAI files for IPO, following Anthropic

OpenAI has confidentially submitted a Form S-1 to the US Securities and Exchange Commission, a preliminary step in its IPO process. This follows rival Anthropic's similar move on June 1st. The confidential filing keeps certain details private, including executive compensation and financials. The move is part of a competitive IPO race between the two AI companies. The outcome of this race could impact the AI industry.