Apple and Meta are getting along, and the new Muse Spark Open model brought them together

Apple and Meta have found something they can agree on.

Apparently, it takes a very large AI model.

The longtime rivals have teamed up to make Meta’s new Muse Spark Open model run locally on Apple’s M5 Ultra Mac Studios.

Announced Oct.

15 , the release lets developers download and customize the new open-weight model, though two connected Apple desktops are required to power it.

"The result is two Mac Studios behave like one supercomputer," Meta wrote in a blog post.

"We're excited for mommy and daddy to be playing nice again," Meta’s AI chief Alexandr Wang told Axios .

An unusual way to describe a corporate collaboration, sure.

But these companies do have some history.

As recently as January 2025, Mark Zuckerberg was criticizing Apple on Joe Rogan’s podcast for its lack of innovation and restrictions on other companies’ products.

Now, Meta is helping show off what Apple’s silicon can do.

Muse Spark Open builds on the Muse Spark model family Meta introduced in April.

Meta calls it the most capable U.S. open-weight model available, a claim based on its own evaluations.

" Open-weight " means developers can download the model’s learned parameters and run them themselves, subject to the model's license, rather than accessing it exclusively through a company’s app or cloud service.