Meta released Muse Spark Open, an 816-billion-parameter open-weight model, and said it runs on two 512GB M5 Ultra Mac Studios using Apple’s MLX framework. The 512GB machines were not yet on sale. Meta is the name attached to it.
For a team that wants a huge open model without renting a cluster, the only useful question is whether the opening sentence changes what you open, buy, or tell someone before the day ends.
Skip the confident rewrite you will see elsewhere. Motives and timelines that were not in the report do not belong in this brief on Muse Spark Open Mac Studio.
I will correct this if a primary source from Meta contradicts it. A brief on Muse Spark Open Mac Studio can be overtaken. It should not get more certain just because it was reposted.