Meta, Microsoft, Nvidia and Others Sign Letter Defending Open-Source AI

Many of the largest U.S. tech companies signed a https://www.microsoft.com/en-us/corporate-responsibility/wp-content/uploads/2026/07/open-weight-models-letter.pdf">joint letter on Friday defending open-source AI software as the Trump administration considers possible restrictions on Chinese labs.

The letter—signed by Meta Platforms, Nvidia, Microsoft and Andreessen Horowitz, along with AI startups like ...