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SAT, 17 OCT · 80 ITEMS
r/LocalLLaMA, The Guardian, Reuters + 3 more · AI & Technology
6 outletsMeta has released Muse Spark Open, an 816-billion-parameter mixture-of-experts model built for coding, long-horizon agentic tasks, and native input. , the local fine-tuning/quantization tooling company, immediately shipped support in Unsloth Desktop and quantizations — including dynamic 2-bit builds said to run on a Mac Studio — so the Reddit post is announcing that local, runnable support rather than the model release itself.
The core claim is solid and sits close to the primary source: Meta itself announced Muse Spark Open on October 15, 2026, and the model is documented on Meta’s research blog and Hugging Face, with Unsloth’s own docs confirming tooling support. Specs such as the 816B-parameter
Genuinely new: Meta released Muse Spark Open on October 15, 2026, and Unsloth’s support and the Reddit announcement followed within a day as part of the launch wave.
In July 2026 we reported that Meta appeared to be working on an open-source variant of Muse Spark; Muse Spark Open is the concrete realization of that, released publicly this week.