Meta Launches Muse Spark Open, An 816 Billion Parameter AI Model Built for Mac Computers
42 Sources
[1]
Meta launches an open-weight AI model that runs on Macs
Meta has launched what it calls the "most capable" open-weight model in the United States. Dubbed Muse Spark Open, the model also has the distinction of having been designed to work with Macs. The new model, which leverages 816 billion parameters and a 1 million token context window, claims to
[2]
Surprise! Meta and Apple Worked Together on a New Open-Source AI Model - CNET
Think of Muse Spark Open as the result of Meta and Apple's enemies-to-lovers arc. It's the enemies-to-lovers trope, tech edition. Two tech titans have teamed up to create a new open-weights AI model. Meta is the owner of the new AI model, called Muse Spark Open, and it worked with Apple's hardware
[3]
Meta and Apple team up to make Muse AI models run better on Macs
Meta announced the Muse Spark Open AI model today, claiming that it's the "most capable US open-weight model to date." But the company also says that it's the "the first model in its class" that can "run on your desktop using two Apple M5 Ultra Mac Studios with the latest MLX framework." Meta and
[4]
Meta releases open-weight Muse Spark model for coding, agentic tasks
Oct 15 (Reuters) - Meta Platforms (META.O), opens new tab on Thursday released an open-weight version of its Muse Spark artificial intelligence model for coding and AI agents, expanding developers' ability to download and adapt the technology. Open-weight models make trained parameters available
[5]
Meta built a huge open-weight AI model for Macs, but you'll need 1TB of RAM to run it - Engadget
In case there was still any doubt about Meta's commitment to open models, the company is open-sourcing Muse Spark with a new open-weight model called Muse Spark Open. The 800-billion parameter model was optimized for Apple Silicon, but you'll need a staggering 1TB of RAM to run it locally. Meta,
[6]
Apple and Meta team up to make Muse AI model run on Mac computers
* Apple and Meta are collaborating to let developers run Meta's massive Muse Spark Open AI model locally on high-end Mac computers. * The news reflects a growing interest in running powerful AI models on local hardware rather than relying on cloud data centers. * The collaboration is an unlikely
[7]
Apple and Meta team up to run Muse Spark Open on Mac Studios
Mark Zuckerberg thanked John Ternus on X, and Meta's AI chief said the rivals had worked together for months. The model needs at least two Mac Studios. Apple and Meta worked together so that Meta's new open-weight model, Muse Spark Open, runs on Apple's Mac Studio desktops. The companies revealed
[8]
Meta launches new Muse Spark Open model, optimized to run on Mac Studio
Meta today unveiled Muse Spark Open, which it says is the "most capable US open-weight model to date." For Apple users, Meta says Muse Spark Open is optimized to run on the Mac Studio powered by M5 Ultra. In a blog post, Meta explains that Muse Spark Open is natively multimodal and brings "leading
[9]
No, Meta's Muse will not run on your Mac
You may have seen the headlines by now. "Apple and Meta bury the hatchet -- for AI" "Apple and Meta team up to make Muse AI model run on Mac computers" "Meta and Apple team up to make Muse AI models run better on Macs" "Meta launches an open-weight AI model that runs on Macs" None of these are
[10]
Meta and Apple Bring Muse Spark Open AI Model to Mac Studio
Meta today announced the release of Muse Spark Open, which it says is the "most capable U.S. open-weight model to date." Meta worked with Apple to bring Muse Spark Open to the Mac, and the model can run on a desktop setup with two 512GB Apple M5 Ultra Mac Studios running the latest MLX framework.
[11]
Meta opens a weaker AI model while keeping the frontier closed
Alexandr Wang says the world's open models should be American. Alibaba's chairman told Turin last week that open source is Europe's only route to independence. Meta has published the weights for Muse Spark Open, a coding and agent model it says is less advanced than the Muse Wonder frontier model
[12]
Meta releases Muse Spark Open, a new 'open-weight' AI model
Meta says Muse excels at 'multi-step reasoning' and 'complex software engineering' as it races to catch up to Chinese rivals Meta on Thursday launched a new open-weight AI model which it claims rivals, and in some cases outperforms, similar products from leading Chinese developers. Muse Spark
[13]
Apple and Meta team up on Muse Spark Open for Mac Studio
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
[14]
Meta unveils Muse Spark Open, the new top U.S. open weights model -- and it runs on two paired Mac desktops
Chinese labs have become a go-to source for AI models businesses can download, customize and run on their own infrastructure. Alibaba's Qwen, DeepSeek and Moonshot AI's Kimi help set the competitive standard for open-weight systems, giving developers alternatives to proprietary models accessed
[15]
"Mommy and daddy" play nice: Apple and Meta team up to bring open-source Muse to Macs
Apple and Meta, whose leaders have spent years trading barbs over privacy and the future of computing, are joining forces to bring one of America's most powerful open-weight AI models to Apple's high-end Macs. Why it matters: The collaboration marks a striking détente between two longtime Silicon
[16]
Meta and Apple team up to run Muse Spark Open AI model on Mac Studio
Apple said four M5 Ultra Mac Studios generate more than 36 tokens per second with Muse Spark Open, which has 816B parameters Meta $META released the weights for its Muse Spark Open AI model on Thursday and said it optimized the model to run on Apple $AAPL's Mac Studio desktop computers with M5
[17]
Meta unveils new 'open' AI model to rival Chinese competition
Meta on Thursday launched a new open-weight AI model that it claims rivals, and in some cases outperforms, similar products from leading Chinese developers. Muse Spark Open "is the most capable U.S. open-weight model to date," Meta's chief of AI Alexandr Wang wrote on X. Unlike with so-called
[18]
Meta wants you to run its powerful new AI model on your desktop, but there's a catch
Muse Spark Open packs 816 billion parameters and a million-token context window, but running it on your desk won't come cheap. Running a top-tier AI model usually means renting expensive cloud servers or paying for yet another subscription. Meta wants to change that. The company has released the
[19]
Meta and Apple agree on at least one thing: Open-weight AI is cool
Meta released a new version of its Muse Spark LLM on Thursday. As its name indicates, the big news about Muse Spark Open is that it's an open-weight model. Rather than being offered solely as a cloud service, it's publicly available for anyone to run on their own hardware. With 816 billion total
[20]
Meta unveils 'most capable' US open-weight model Muse Spark Open
The multimodal model has 816bn total parameters, with 42bn active parameters and a 1m-token context window. Meta has unveiled Muse Spark Open, calling it the "most capable" US open-weight model to date. The company said that the new model is the first in its class to be able to run on a desktop
[21]
Meta releases 816B-parameter Muse Spark Open for coding and agent work
Meta releases 816B-parameter Muse Spark Open for coding and agent work Meta Platforms Inc. today released open weights for its Muse Spark artificial intelligence model, which had been proprietary since its April debut. The release, called Muse Spark Open, is built for coding and long-running
[22]
Meta and Apple team up to run Muse Spark Open AI model on Macs
The rivals worked together so developers can run Muse Spark Open on their own Mac Studio machines instead of in the cloud Meta $META and Apple $AAPL announced a collaboration on Thursday that lets developers run Meta's new open-weight AI model, Muse Spark Open, on Apple's Mac Studio desktop
[23]
Meta and Apple's unlikely team-up brings an 816-billion-parameter AI model to Mac Studio hardware
Meta's Muse Spark Open runs locally across connected M5 Ultra Mac Studios, keeping data off the cloud, but the setup requires multiple costly Macs. Apple and Meta haven't been exactly on friendly terms over the past decade. Apple's 2021 privacy changes cost Meta an estimated $10 billion in annual
[24]
Meta releases open AI model while keeping its best tech closed
Meta Platforms made one of its new artificial intelligence models available for developers to download and modify, while keeping its most advanced technology closed in an effort to convert its AI investments into revenue. On Thursday, Meta announced it's releasing the "weights" -- the settings
[25]
Meta launches an open-weight AI model built for Macs
Meta has launched Muse Spark Open, an AI model designed to run on Macs that the company calls the "most capable" open-weight model in the United States. The model has 816 billion parameters and a 1 million-token context window. Evaluation results released by Meta on Thursday claim it outperforms
[26]
Meta Partners With Apple to Run Muse Spark Open AI Model Locally
* The model supports a 1M-token context window * Meta partnered with Apple to run it locally on Mac Studio * It supports multiple engines like SGLang and vLLM Meta on Thursday announced a new open-weight artificial intelligence (AI) model for coding, software development, and complex, multi-step
[27]
What is Meta's Muse Spark Open and what can it do?
An open-weight model is an AI model whose core components -- the numerical parameters learned during its training, known as its weights -- are released publicly. Anyone can download the model, run it on their computer, study how it works, and adapt it to their needs, subject to the model's licence
[28]
Mark Zuckerberg Opens Meta's Massive Muse Spark AI Model, Says It Runs Great on Apple's New Mac Studios T
On Thursday, Meta Platforms, Inc. (NASDAQ:META) CEO Mark Zuckerberg said the Muse Spark AI model is now available as an open-weight model, highlighting its compatibility with Apple Inc.'s (NASDAQ:AAPL) latest Mac Studio and crediting CEO John Ternus. Meta Opens Up Muse Spark AI Model "Muse Spark
[29]
Meta's Muse Spark Open Model Delivers A Throughput Of 20 Tokens/Sec On 2x Apple M5 Ultra Mac Studios
Who says Apple needs to come up with its own frontier-class AI model to win? Apparently, all it has to do is partner up with another firm that is already ploughing tons of resources into building frontier-scale models. As evidence, look no further than the just-announced partnership between Apple
[30]
Meta's Muse Spark Open is free to download, but comes with strings attached
The main commercial restriction applies to companies that offer AI models as a service, giving customers model outputs through an application programming interface (API) or a similar interface. Meta is back in the open-weight AI arena, this time with a large model and a list of conditions. On
[31]
Apple, Meta Team Up to Put Big AI on Desktops | PYMNTS.com
Meta released Muse Spark Open, an 816 billion-parameter model it calls the most capable U.S. open-weight model to date, and said it worked with Apple to tune the model for two Mac Studio desktops. Apple published updated software and benchmarks the same day. Meta said the model and Apple's desktops
[32]
Apple's new CEO just teamed up with Tim Cook's old rival
Grudges in business rarely end with an apology. They end when both sides need something the other one has. You've probably seen it at work. The coworker you avoided for years becomes your closest ally the week a big project lands on both your desks. Nobody admits the feud is over, but the emails
[33]
Meta Launches Open-Weight AI Model Designed for Macs, But There is a Catch
The new model leverages 816 billion parameters and a million token context window, the company notes Looks like the revamped AI team that Mark Zuckerberg brought home some months ago is pushing the frontiers. Having come out with first couple of frontier models a week ago, the company has now
[34]
Meta and Apple Bring Open-Weight Frontier Model to Desktops | PYMNTS.com
The model, Muse Spark Open, is "the most capable U.S. open-weight model to date," Meta said in the release. It is natively multimodal and has 816 billion total parameters (42 billion active) and a one million-token context window, according to the release. Muse Spark Open is built for coding and
[35]
Meta Muse Spark: Meta releases open-weight Muse Spark model for coding, agentic tasks
Open-weight models make trained parameters available for developers to modify, unlike proprietary models that remain under their creators' control. They can offer businesses a lower-cost alternative to closed systems. Meta Platforms on Thursday released an open-weight version of its Muse Spark
[36]
Meta AI Chief Credits Daniel Gross for Apple-Meta Deal
Meta AI chief Alexandr Wang has credited former Apple executive Daniel Gross with helping bring Apple and Meta together for an AI collaboration that runs Meta's Muse Spark Open model on Mac Studio computers. Meta AI Chief Alexandr Wang has credited former Apple executive Daniel Gross with helping
[37]
Muse Spark Open Brings Meta's AI Weights to Developers' Desktops
Meta released Muse Spark Open, an 816-billion-parameter open-weight AI model for coding and agentic tasks. It can run locally on Apple Mac Studio hardware and is available through major cloud platforms. Meta Platforms released Muse Spark Open, an open-weight artificial intelligence model aimed at
[38]
Meta launches Muse Spark Open: 816B model runs on Apple desktops
Open-weight AI targets coding, automation, and long-context reasoning Meta launched Muse Spark Open today, a new open-weight AI model that the company says is the most capable U.S. model in its class. Meta says it's built for coding, workflow automation, and multi-step reasoning, for people who
[39]
Apple and Meta team up to run Muse Spark Open AI model on Mac Studio
Apple and Meta have announced a collaboration allowing developers to run Muse Spark Open, Meta's new open-weights artificial intelligence model, locally on the most powerful Mac Studio computers. The first partnership between the two rivals in several years aims to reduce dependence on cloud
[40]
Meta releases open-weight Muse Spark model for coding, agentic tasks
Oct 15 (Reuters) - Meta Platforms on Thursday released an open-weight version of its Muse Spark artificial intelligence model for coding and AI agents, expanding developers' ability to download and adapt the technology. Open-weight models make trained parameters available for developers to modify,
[41]
Muse Spark Open: Open weights with a new model built for coding and AI agents
It looks like Meta has put up an 816 billion parameter model on Hugging Face and encouraged everyone to take what they could use. More or less. Muse Spark Open was launched on October 15, and Meta says it is the most powerful US open-weight model ever. That's a bold claim but not necessarily the
[42]
Meta announces Muse Spark Open: A multimodal AI that can run on Apple Mac Studios powered by M5 Ultra
Muse Spark Open supports coding, bug fixes, software engineering and video analysis. Tech company Meta has announced Muse Spark Open, which the company is claiming to be the "most capable" open-weight model in the US. The tech giant noted in a blog post that the agentic capabilities of its
Share
Copy Link
Meta unveiled Muse Spark Open, calling it the most capable US open-weight AI model to date. Built through a rare collaboration with Apple, the 816 billion parameter model runs locally on Mac Studio computers but requires 1TB of RAM. The model excels at agentic and coding tasks, offering developers a cost-efficient alternative to closed AI systems.
Meta and Apple Collaboration Produces Powerful Open-Weight AI Model
Meta has released Muse Spark Open, which the company describes as the most capable US open-weight AI model to date
1
. The launch marks an unexpected Meta and Apple collaboration, with both companies working together over several months to optimize the model for Apple Silicon3
. Mark Zuckerberg announced the partnership on X, stating that Muse Spark Open runs exceptionally well on new Mac Studios thanks to work with John Ternus and Apple3
. Apple's new CEO responded enthusiastically, highlighting how Mac Studio keeps pushing the boundaries of on-device AI3
.
Source: PYMNTS
This partnership represents a significant shift for two companies that have historically taken divergent paths. Apple's privacy-focused approach has clashed with Meta's advertising business model, most notably when Apple's app tracking opt-out feature cost Meta $10 billion in 2022
2
. Meta chief AI officer Alexandr Wang told Axios the team is excited for mommy and daddy to be playing nice again2
.Technical Specifications and Hardware Requirements
Muse Spark Open leverages 816 billion parameters and a 1 million token context window, positioning it as a natively multimodal model built for complex software engineering and multi-step reasoning
1
3
. The model has 42 billion active parameters and multimodal capabilities that excel at agentic and coding tasks2
.
Source: SiliconANGLE
To run locally on Mac computers, users need substantial computing power. The model requires at least 1TB of RAM, achievable through two M5 Ultra Mac Studios
5
. Apple's unified memory architecture allows the M5 Ultra's integrated GPU to use up to 512GB per Mac Studio, meaning two machines can function as one supercomputer with a terabyte of unified memory5
. At $5,499 each, this setup represents a significant investment2
. Alternatively, the model can run on four 256GB M5 Ultra Mac Studios, costing roughly $38,0005
.Performance and Practical Applications
Meta claims Muse Spark Open outperforms leading Chinese models GLM 5.3 and Kimi K3 on agentic tasks and visual reasoning, according to benchmarks released by the company
5
. The company paired the model with Muse Code, its AI coding terminal, and deployed it to various workflows including coding fixes for a Mastodon client that included bug fixes, new features, and full builds1
.Meta also tested the model with DaVinci Resolve, the high-end video editing software, demonstrating its capability to review and crop footage
1
. These practical demonstrations showcase the model's versatility across different professional workflows.Related Stories
Open-Weight Advantages and Strategic Positioning
As an open-weight AI model, Muse Spark Open makes trained parameters available for developers to modify and customize to their needs
4
. Open-weight models offer distinct industry advantages including significant cost-efficiency and transparency that closed-source AI systems don't provide1
. For organizations burning through token budgets on subscription services, investing in Mac Studios to run the model locally might prove more economical long-term5
.
Source: Gadgets 360
Meta has positioned this release within broader geopolitical AI competition, stating the company believes the US should not allow Chinese labs to lead on open-source AI
5
. The model's weights are publicly available now on Hugging Face under Meta's Muse Model license2
. Apple also published a technical post about MLX framework, an array framework for machine learning tasks on Apple Silicon3
. Meta is making the model available through various API platforms as well1
.References
Summarized by
Navi
[1]
Related Stories
Meta's Muse AI Agent Could Strip $10 Billion From Apple's Services Revenue, Analysts Warn
30 Sept 2026•Business and Economy
Meta AI's Muse Spark API Delay Leaves Developers Waiting as Competition Intensifies
04 Jun 2026•Technology
Mark Zuckerberg Challenges Apple's Closed Ecosystem, Advocates for Open-Source AI
24 Jul 2024
Recent Highlights
1
Anthropic AI Development Doubles Speed as Self-Improving Systems Near Breakthrough
Technology
2
Google's AI Policy Forces Schools to Accept AI Overviews or Lose Search Access Entirely
Technology
3
Jensen Huang Scandal: Nvidia CEO's Affair with Suspected Chinese Spy Raises National Security Concerns
Policy and Regulation
Recent Highlights
Today's Top Stories
Don’t drown in AI news. We cut through the noise - filtering, ranking and summarizing the most important AI news, breakthroughs and research daily. Follow topics that matter to you and stay ahead.
