Meta Releases Muse Spark 1.2 Open‑Source Model to Run on Single Computer

Meta released the Muse Spark 1.2 large language model as open‑source software, publishing the full code, model weights and training scripts on GitHub to let anyone download, inspect and modify the AI system.

Muse Spark 1.2 runs on a single consumer‑grade GPU‑enabled PC, eliminating the need for expensive multi‑node clusters and allowing university labs, startups and hobbyists to experiment with a state‑of‑the‑art language model at low cost.

Mark Zuckerberg said the open‑weights approach is meant to spread “positive AI,” give developers control over the technology and serve as a strategic counter to China’s fast‑moving AI ecosystem.

Analysts observe that Meta’s move strengthens its position in the open‑weight AI race, could attract more academic research, and may pressure rivals such as OpenAI and Google to increase transparency of their own large models.