open source AI
2 articles tagged with open source AI
August 10, 2026
model release
Meta Releases Muse Glimmer, First Open-Weight Model Since Llama 4, Paired With Zuckerberg Manifesto on Distillation
Meta has released Muse Glimmer, a 30-billion-parameter open-weight model under Apache 2.0, its first open release since Llama 4 in spring 2025. The launch comes with a Zuckerberg essay defending distillation of rival models and hinting at a future 'dynamic auction' pricing scheme for compute.
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.