IT之家 · 智能时代 · 10/16/2026, 08:24:32
Apple and Meta Partner to Run Muse Spark Open Locally on Dual M5 Ultra Mac Studios
Meta and Apple have formed a rare technical partnership, successfully running the open-weight model Muse Spark Open locally on two M5 Ultra Mac Studios equipped with 512GB unified memory via the MLX framework. With 816 billion total parameters and a 1 million token context window, this demonstration marks a significant breakthrough in on-device AI capabilities, despite high hardware costs and pending availability.
SOURCE COVERAGEFull Original Report
Apple and Meta Break the Ice: Running "America's Strongest Open-Source AI Model" Locally on Two 512GB Mac Studios
On October 16, tech media outlet MacRumors published a report stating that Meta and Apple have initiated a collaborative effort, enabling the local execution of Muse Spark Open, described as "the most powerful US open-weight model to date," on two Mac Studio machines.
IT Home previously reported that Meta launched the open-weight model Muse Spark Open, which features a total parameter count of 816 billion, with 42 billion active parameters and a context window of 1 million tokens. The model is primarily designed for complex workflows such as programming, agentic tasks, multi-step reasoning, and software engineering.
In this release, the most notable aspect is the unprecedented collaboration between Meta and Apple. The media outlet noted that for years, the two companies have been at odds regarding business practices, privacy, regulation, and product ecosystems. This technical partnership, focused on running Muse Spark Open locally on Mac Studio hardware, represents a rare instance of public cooperation.
The demonstration was conducted on two Apple M5 Ultra Mac Studio units equipped with 512GB of unified memory, utilizing the latest MLX framework to run Muse Spark Open.
Both Meta CEO Mark Zuckerberg and Apple CEO John Ternus confirmed the collaboration on social media platforms. Ternus stated that the Mac Studio continues to push the boundaries of on-device AI capabilities, while Zuckerberg remarked that the model performs well on the new Mac Studio hardware.
However, this setup comes at a significant cost. The 512GB version of the Mac Studio has not yet been officially released and is expected to launch later this month. Meanwhile, the price of the 256GB Mac Studio already exceeds $10,000 (Note from IT Home: approximately 67,030 RMB at current exchange rates).