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Microsoft retains 27% stake in OpenAI but loses exclusive access as companies amend partnership agreement
Yahoo Finance AI · April 27, 2026
AI Summary
- •Microsoft and OpenAI amended their agreement to allow OpenAI to partner with Microsoft's competitors, according to the article.
- •Microsoft holds a 27% stake in OpenAI and previously had exclusive access to the company's large-language model products (AI systems that understand and generate text).
- •The change means Microsoft no longer has exclusive rights to OpenAI's LLM products, even as it maintains its ownership stake.
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