OpenAI sold part of employee shares at a valuation of about $500 billion

This makes it the most valuable startup in the world.

• Current and former OpenAI employees have sold shares worth about $6.6 billion to investors, report Bloomberg and Financial Times. OpenAI authorized the sale of up to $10 billion in stock — but many chose not to sell. This indicates the employees' confidence in the company's future, the media outlets note.
• The buyers include Thrive Capital, SoftBank, Dragoneer Investment, MGX, and T. Rowe Price, according to sources.
• OpenAI now surpasses SpaceX, the world's most valuable startup, which is valued at $400 billion.
• In April 2025, during a $40 billion funding round, investors valued the company at $300 billion. In September, Nvidia agreed to a strategic partnership with OpenAI: it will invest up to $100 billion in the ChatGPT developer to support the deployment of an AI infrastructure with a capacity of at least 10 GW.

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