OpenAI has reportedly set aside an employee stock grant pool equivalent to 10% of the company, valued at $500 billion in October. This, along with $80 billion in vested equity, comprises about 26% of the firm. The company is also reportedly in preliminary talks to raise new funds, potentially valuing it at around $750 billion, a significant increase from its October valuation. Reuters could not immediately verify these reports, and OpenAI has not yet commented.