On July 24, 2026, a group of about 25 leading tech companies released an open letter warning Washington against restricting open-weight AI models. Google stands with OpenAI and xAI in voicing public support, even though none of these three have officially signed the document yet.
The letter, called “Open Weights and American AI Leadership,” argues that freely sharing AI model parameters is critical for maintaining American leadership in artificial intelligence. It warns that early limits on such openness would hand an edge to competitors like China, which is rapidly advancing with models such as Moonshot AI’s Kimi K3.
Why Open Weights Matter
The letter draws from the history of open-source software in the 1980s, when free code sharing faced skepticism but eventually became essential to the internet’s growth. It claims that open-weight models make AI more accessible to smaller firms and researchers, fostering innovation by lowering entry barriers. also it highlights security benefits, suggesting that community audits uncover vulnerabilities faster than isolated teams.
Signatories include heavy hitters across the AI ecosystem: chipmakers like Nvidia, infrastructure providers such as Dell and IBM, and AI-focused firms like Hugging Face and Mistral. Nvidia’s CEO Jensen Huang even shared the letter publicly on X, marking his first post there, while OpenAI CEO Sam Altman praised the initiative.
The fact that Google, OpenAI, and xAI support but have not signed hints at possible strategic caution public backing without formal commitment. This stance allows them to align with the open AI movement’s values while keeping flexibility.
