model release
1 article tagged with model release
April 8, 2026
model release
Meta launches proprietary Muse Spark model, abandoning open-source commitment
Meta has released Muse Spark, a proprietary AI model with restricted access via API and portal invite only—a striking reversal from CEO Mark Zuckerberg's 2024 manifesto championing open-source AI. The model claims performance matching top competitors from OpenAI, Anthropic, and Google, trained with an order of magnitude less compute than Llama 4.