US Open-Weight AI Push Gathers Steam as Meta and Nvidia Release Free Models

Meta released Muse Spark 1.2 with open weights and unveiled Muse Glimmer, while Nvidia introduced Nemotron 3.5 Lightning, all as free, downloadable open-source AI models. The moves are part of a broader US effort to keep open-weight AI competitive with Chinese labs and avoid premature restrictions, signaling a shift toward transparent, customizable on-device AI. Industry voices see potential for increased competition and innovation, though adoption and ecosystem development remain uncertain amid concerns about distillation, security, and access for government or large institutions.