Meta has a competitive AI model but loses its open-source identity

Meta has transitioned from its open-source roots with the launch of Muse Spark, its latest AI model, which is entirely proprietary and not available for public download. This shift comes after a significant investment of $14.3 billion and a complete overhaul of its AI infrastructure, aiming to deliver a more capable and efficient model that integrates advanced multimodal reasoning and tool-use features, while also prioritizing health applications.