Nvidia has rallied major tech companies behind a new AI security alliance, but two high-profile names are nowhere to be found.

Nvidia, Palantir, and other tech giants urge Congress not to ban open-weight AI models, arguing restrictions would weaken US national security

A coalition of tech firms led by Nvidia and Microsoft called on policymakers to promote the development of open-weight artificial intelligence models.

Letter explaining support comes amid rift over AI development philosophies and governance