25 Tech Giants Urge Washington Against Open-Weight AI Restrictions; OpenAI and Anthropic Sit Out

IsForAt · x · 2026-07-26

Twenty-five tech companies, including Nvidia, Microsoft, Meta, and Mistral, co-signed a letter this week urging Washington not to restrict open-weight AI models.

Notably, OpenAI and Anthropic did not participate. Commentators highlight that these two leading labs, having benefited from open research, are now lobbying to restrict it. Furthermore, the safety argument against open weights is challenged: the White House's own complaint revealed that Kimi K3 was built by distilling Anthropic's closed API, proving that capability leakage stems from closed products rather than open weights.

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