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OpenAI files confidential IPO paperwork, starting funding battle with Anthropic and SpaceX

OpenAI has filed a confidential S-1 registration statement with the U.S. Securities and Exchange Commission, beginning its initial public offering process. Foreign media reported the company disclosed the move on June 8 local time, following Anthropic’s start of the same procedure on June 1. With key financial and risk disclosures still private, information for investors remains limited. The article compares valuations, outlines internal debate, and highlights scrutiny of large computing infrastructure investment plans as SpaceX also prepares an IPO.