Meta unveils open-source AI model Muse Glimmer; Zuckerberg urges lighter regulation

Published Aug 10, 04:06 PM UTC

Meta Platforms released a new open-weight AI model, Muse Glimmer, on August 10, 2026, designed for agentic tasks and capable of running locally on a single graphics card. CEO Mark Zuckerberg used the launch to advocate for lighter US regulations on open-source AI, arguing Chinese developers have taken the lead. The release intensifies the ongoing debate over Meta's massive AI spending, with capital expenditures expected to reach $145 billion in 2026, nearly double the previous year. While Meta's advertising business remains strong, generating $114 billion in the first half of 2026, the high spending has weighed on the stock, which is down 11% year-to-date. The article presents both bull and bear cases, highlighting market demand for cost-effective, secure local AI models versus concerns about Meta playing catch-up and the sustainability of its investment.