Y Combinator holds a stake of approximately 0.6% in OpenAI, which is valued at over $5 billion given OpenAI's current $852 billion valuation. This information was reportedly shared by an individual familiar with OpenAI's investors. The article also references other recent AI developments, including a refactor of LLM 0.32a0, the history of an OpenAI-Microsoft AGI clause, and the DeepSeek V4 model. AI
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IMPACT Provides insight into the financial structure and valuation of leading AI labs like OpenAI.
RANK_REASON Significant funding information regarding a major AI lab's valuation and investor stake.