A sign at the entrance to Meta’s headquarters in Menlo Park, Calif., Jan. 7, 2025. Meta’s release of Muse Glimmer, a model that can be freely downloaded and modified, is likely to intensify a debate over whether A.I. should be restricted or not. (Jason Henry/The New York Times) By ELI TAN and MIKE ISAAC Last month, Mark Zuckerberg, Meta’s CEO, boldly came out in support of “open source” artificial intelligence models that are publicly available to download and modify without payment or…
