Meta releases Muse Spark Open, an 816B-parameter open-weight model
Meta has released Muse Spark Open, a multimodal model with 816B total and 42B active parameters, featuring a 1M-token context window. The model supports local execution on Apple M5 Ultra Mac Studios and is available on AWS SageMaker and Hugging Face.
Read the full story at AWS Machine Learning Blog ↗
Timeline · 13 reports
- 2026-10-15 18:34 · The Decoder
Muse Spark Open is Meta's answer to Qwen, GLM, and Kimi in the open-weight race - 2026-10-15 18:00 · NVIDIA Technical Blog
Scale Agentic Coding Workflows with Meta’s Muse Spark Open on NVIDIA GB300 NVL72 - 2026-10-15 17:55 · PyTorch Blog
Muse Spark Is Now an Open-Weights Model - 2026-10-15 17:43 · AWS Machine Learning Blog
Meta’s Muse Spark Open now available in Amazon SageMaker JumpStart - 2026-10-15 17:35 · Unite.AI
Meta's 816B-Parameter Muse Spark Open Weights Are Now Public - 2026-10-15 17:20 · Techmeme
Meta says it worked with Apple to make Muse Spark Open run locally on M5 Ultra Mac Studios, letting users pair two to four Studios to code or do agentic work (CNBC) - 2026-10-15 17:10 · Techmeme
Meta releases Muse Spark Open, saying it is the most capable US open-weight model, with 816B total and 42B active parameters and a 1M-token context window (Meta AI Research) - 2026-10-15 17:08 · AlphaSignal
Meta Drops Muse Spark Open, an 816B Open-Weight Model Rivaling Closed AI Giants - 2026-10-15 17:00 · The New Stack AI
Meta ships Muse Spark Open, its answer to China’s best open-weight models - 2026-10-15 00:00 · Together AI Blog
Meta Muse Spark Open is live on Together AI - 2026-10-15 00:00 · Hugging Face Blog
Welcome Muse Spark Open: open-weight frontier multimodal mixture-of-experts model from Meta - 2026-10-14 13:14 · AWS Machine Learning Blog
Deploy and evaluate models with Amazon SageMaker JumpStart - 2026-10-13 23:35 · r/LocalLLaMA
Muse Spark open weights reaffirmed