[OpenAI's Secondary Stock Sale Expands to Over $10 Billion, Valuation Reaches $500 Billion] Reported by Jinse Finance, OpenAI is increasing the scale of its secondary stock sale by more than $4 billion. Sources revealed that OpenAI will offer eligible current and former employees the opportunity to sell approximately $10.3 billion worth of shares, significantly higher than the initial target of $6 billion. According to the source, the valuation for this stock sale will reach $500 billion, aligning with market expectations. Earlier this year, OpenAI's latest round of funding valued the company at $300 billion. The source stated that OpenAI presented this proposal to employees on Wednesday. Employees who have held shares for more than two years must decide by the end of September whether to participate in this transaction, which is expected to be completed in October. Institutions participating in the investment include SoftBank Group, Dragoneer Investment Group, and Thrive Capital.