Model
Muse Spark Open.
Power
Varies
API cost
by Meta
In plain English
A downloadable version of Muse Spark, with 816 billion parameters.
Good for
Organisations that want more control over where it runs and where their data goes.
Things to be aware of
Open weight doesn't mean open source, and even the smaller version is about 537GB. Running it is a serious infrastructure job.
What Meta says
“Meta calls it “the most capable US open-weight model to date”. That is a dated claim from the company selling the model. Compare it with independent tests and your own work.”
- Context window
- 1.0M tokens
- Run it yourself
- Yes, under Meta's Muse licence