Published on April 9, 2026 at 14:03 Commenter 0 𝕏 Print © Meta The self-proclaimed champion of open-source AI has just locked down his new model. The irony is hard to swallow. Meta launched Muse Spark on Wednesday, April 8, the first model from Meta Superintelligence Labs, the unit led by Alexandr Wang. The model was developed in nine months after a complete overhaul of the company's AI infrastructure. It already powers the Meta AI assistant on the web and