A group of major technology companies is publicly closing ranks behind so-called open-weight AI models — systems whose underlying parameters are shared openly rather than locked away. According to reporting aggregated across outlets, Nvidia, Microsoft and IBM are among the firms endorsing the approach.
The backing came in an open letter. Fox Business and MSN report that Nvidia, Microsoft and Meta joined more than 20 technology companies urging U.S. policymakers to avoid broad restrictions on open-weight AI models. The National News and MSN list Nvidia, Microsoft and IBM among the signatories, noting the letter arrives amid a rift over competing AI development philosophies and governance.
The companies frame the stakes in competitive terms. According to the South China Morning Post, Nvidia, Palantir and Meta warned against "premature restrictions" on open-weight models, arguing that heavy-handed rules could undermine competition and push more users toward Chinese AI systems. Microsoft made a parallel case in a post titled "Open Weights and American AI Leadership," and Punchbowl News reported that tech giants were underlining their support for open-source AI.
The show of support extended to individual executives. Stocktwits reported that Nvidia CEO Jensen Huang used his first post on X to back open-weight AI alongside Meta, Microsoft and Palantir.
The momentum is not limited to industry. According to Evelyn Cheng of CNBC, the United States, China and other APEC economies released a statement supporting open models while emphasizing respect for security, data protection and intellectual property rights.
Why it matters: how governments choose to regulate open-weight AI will help decide whether the most powerful models remain broadly accessible to developers and businesses or become tightly controlled — a choice these companies argue could shape which countries lead the technology.