Google, OpenAI, xAI Back Open-Weight AI Letter to US Policymakers

Google, along with OpenAI and xAI, is backing an open letter to US policymakers about AI models. This letter urges against restricting "open-weight" AI models. Here's the thing: while these three tech giants support the letter, they haven't officially signed it yet. The letter, dated July 24, 2026, already has around 25 signatories, including Nvidia, Microsoft, Meta, and IBM. What's interesting is the letter's core argument: open-weight AI models, which make model parameters public, are beneficial for the US. It suggests that restricting these models could give a competitive edge to rivals, especially China. The letter compares this situation to the open-source software movement of the 1980s. The letter claims open weights boost access for smaller companies and researchers, stimulate competition, and improve security through transparency. The competitive threat from China's AI models is a major point in its framing. The bottom line is this initiative could shape the future of AI development and competition.