
Meta claims the new model is «the most capable US open-weight model to date,» built with 816B parameters and 42B active ones, with a 1M token window, and comes on a license that allows commercial use.
It scores very well on agentic benchmarks against other open models, but often falls short of the leading Chinese ones even on Meta’s selected evaluations. This also holds up on Artificial Analysis’ tests.
The Mac angle seems a nice addition, but this isn’t your garden variety Mac Mini. It needs two Ultra-equipped Studios with 512GB RAM, which isn’t even available on the Apple Store (it’s coming in late October), that will cost you more than $10,000 each.
Compared to running a server farm, it does rather keep the costs down and competes in a whole other league than «will run on your Mac.»
For mere mortals, the model is available through popular API platforms like OpenRouter and Nebius, and it can be downloaded from Hugging Face today.
Read more: Meta’s presentation, on Hugging Face and Apple’s MLX runtime. Axios, MacRumors, and The Verge. Discussion on Hacker News and r/Singularity and r/LocalLLaMA.












