The Globe and Mail reports in its Tuesday edition that Meta chief executive officer Mark Zuckerberg is emphasizing a more open approach to developing artificial intelligence models, unlike other Silicon Valley companies that opt for closed systems. The Globe's Joe Castaldo writes that Mr. Zuckerberg, in a letter, recently argued that open-source technology empowers people and helps prevent centralization. Meta is also releasing a new AI model with open weights. That means anyone can download the parameters and tweak them to have more control over how the model functions. Called Muse Glimmer, the model is small enough to run on a consumer laptop. Mr. Zuckerberg's letter reinforces Meta's stance in the ongoing debate over open source in Silicon Valley and Washington, focusing on the U.S.-China AI race, the balance between private and public interests, and the security of potentially dangerous technology. Open source has been standard in software, but developing sophisticated AI models has been costly, limiting progress to a few well-funded companies. This is changing as Chinese firms like Moonshot AI and Alibaba release open-weight models, enabling broader access and shaking up American tech firms and investors.