Shares of Nvidia, Oracle, CoreWeave and other artificial intelligence names sank lower on Thursday after the market learned more details about OpenAI's revenue.

OpenAI told investors that it hit roughly $50 billion in annualized revenue at the end of September, CNBC confirmed, lower than the the $68 billion figure that was widely reported late last month. A person familiar with the matter said the $68 billion figure included gross revenue from OpenAI's partners, which helps investors make a more direct comparison with its chief rival, Anthropic.