The AI Industry Is Betting on Open Weights

Industry leaders including NVIDIA, Microsoft, Meta, Google and numerous labs and vendors signed a public letter promoting open-weight AI models, arguing they reduce cost, increase operational sovereignty, and improve security through transparency. Momentum for the stance rose after Moonshot's open Kimi K3 reached frontier performance and a government action forced Anthropic to pull a closed model, illustrating risks of depending on closed models. The coalition contends open weights let organizations control and secure models on their own infrastructure while acknowledging limits such as irrevocable release of weights and remaining performance gaps in some security-critical use cases.