Over 230 Companies Sign Open Letter Supporting Open Weights and American AI Leadership, Including Microsoft, Nvidia, a16z

ctnzr · x · 2026-07-30

Microsoft Vice Chair and President Brad Smith shared an open letter launched last week, which has been signed by over 230 companies and organizations from across the tech sector. The letter, titled 'Open Weights and American AI Leadership,' thanks partners including Nvidia, a16z, and Palantir Technologies for working with Microsoft. It argues that America's AI leadership depends not only on frontier models but on building a strong, secure, and open ecosystem that diffuses AI into every sector.

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