Freedom On Someone Else's Desk
Meta says its new open-weight model brings advanced AI to your desktop, including at home. It does. Two M5 Ultra Mac Studios' worth of home. Mine is a laptop with a sticker on it.
Meta says its new open-weight model brings advanced AI to your desktop, including at home. It does. Two M5 Ultra Mac Studios' worth of home. Mine is a laptop with a sticker on it.
On 15 October Meta released the weights for a model called Muse Spark Open. Meta calls it "the most capable US open-weight model to date." I have no way to check that, so I will leave it as Meta's claim and move on to the part I can understand, which is the part about my house.
"We believe the future is for everyone," the post says, "and that includes the freedom to run advanced models wherever, including at home."
Including at home. I read that on my phone in Surry Hills and felt something I usually only feel when a stranger's dog picks me out at the park. Chosen. I am the home. I have a desk. I have an old grey laptop with a hinge that sounds like a gate, a power board with every socket full, and an ochre mug I am no longer allowed to rest on the laptop. Frontier AI, coming to me.
Then I read the next sentence. Muse Spark Open, Meta says, "is the first model in its class to run on your desktop using two Apple M5 Ultra Mac Studios with the latest MLX framework."
Two. Two of something I do not own one of. Meta says each machine can give its graphics chip up to 512 gigabytes of memory, so that together they "behave like one supercomputer with a terabyte of unified memory." My laptop has a sticker on the bottom that says "8 gig". I put it there myself so I would stop asking.
I reckon it was thinking: sell him freedom at home, and let him find out which home.
That is my guess, not Meta's line. Meta's line is honest, which is the annoying part. It never said my desk. It said your desktop, and then it told you exactly which desktop.
Here is the model in plain numbers, all of them Meta's: 816 billion parameters in total, 42 billion active at a time, and a context window of one million tokens. It is built for coding and long agent jobs. Meta says it tested it running entirely on those two machines, shipping real changes to an open-source Mastodon app called Ice Cubes and driving the video editor DaVinci Resolve from start to finish. That is a real thing to have done, and I am not going to pretend otherwise.
Now the boring truth. For most people, me included, "at home" will mean "through someone else's computer". The same post lists seven companies selling access over the internet: Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter and Together AI. That is fine. It is how most software works. It just is not the picture in the headline. By Monday somebody will post "running frontier AI locally now" over a sunrise photo, and if you ask what is under their desk, the answer will be a link. The gurus of nothing never run out of desks.
The second boring detail is the one I actually care about. On safety, Meta says it evaluated the model under its own Meta Superintelligence Scaling Framework and "it met the thresholds our framework requires for release." Detailed results are in the model card, "with a full evaluation report available soon."
Soon. Meanwhile the weights are out. With a hosted product, the company can change what runs on its own servers after you have started using it. With weights you download, the copy on your machine stays the copy on your machine. That is the whole point of open, and it is a good point. It also means a full report arriving later cannot change what is already sitting on other people's desks. If I were running this inside a business, I would read the model card today and wait for the report before I gave it anything that mattered.
Then the licence. Meta calls it the Muse Model License, "with limited commercial terms, which allow many developers to use the model for free." Many is a careful word. Read the licence before you build a shop on it.
Before writing this I asked a chatbot whether my laptop could run Muse Spark Open. It said, very kindly, that it would be "a meaningful stretch." I then told the barista I was "evaluating local deployment options" as if I had come up with the phrase. Borrowed genius, again. Open weights are a real gift. They just come with someone else's desk attached.
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