Members of the lab, including the new chief A.I. officer, Alexandr Wang, have talked about abandoning Meta’s most powerful open source A.I. model in favor of developing a closed one.

Meta Platforms’ new artificial intelligence organization is starting to take shape on the company’s Menlo Park, Calif., campus. The company’s blockbuster hires of AI leaders and researchers in recent weeks has introduced dozens of new faces to the area around Meta’s C-suite,