Meta CEO Mark Zuckerberg has called on the US to reduce policy barriers to open-source AI in order to enhance competitiveness against Chinese rivals. He believes AI should be widely accessible rather than controlled by a few, and restricting access to foreign open-source models is not the solution. Meta has released a new open-weight model, Muse Glimmer, and plans to make the weights of its advanced model, Muse Spark 1.2, publicly available. The company has long supported open models and has adjusted its strategy following the lackluster response to Llama 4. Zuckerberg also announced a $1 billion fund to address concerns about the impact of Meta's data center construction on communities. He admitted that the US is at a disadvantage compared to countries like China in terms of infrastructure development, and if it wants to lead in the field of open-weight models, it needs to reexamine policies on data usage and distillation, as foreign labs have an advantage due to fewer restrictions on US training data.